Got a bidet as a joke gift for Christmas a few years ago, it has been an absolute game changer. Hate pooping anywhere but home now, I actually feel clean, and use much less toilet paper.

When I worked at a small startup, we were moving to a new office and I was asked to help with the buildout. I engaged with the flooring vendor, and he came by one day to drop off a carpet sample. He put it on my desk where my mouse was. It was a rectangle sample of tight knit office carpet, about 18”x22”. When I got back to my desk, I just put my mouse on top of it and started using it as a mouse pad. That was 15 years and 3 companies ago, and I still use it as my mousepad. It’s perfect for the mouse to glide on, soft enough for my wrist to rest on, absorbent of sweat or drink condensation, and large enough I never hit the edge. I will never not use it. It is my mouse carpet, and I love it.

An oversized poncho cape from the local Goodwill. It was woven in different shades of blue and while I'd never wear it outside, I've used it as a wearable blanket at home for a few years now.

I found out it was actually hand made, and costs 300+ USD from the original shop. Bonus points, I feel like a wizard when I wear it

Here's an odd one my wife and I were just talking about. Some years ago, we were redoing our kitchen and the contractor told us to go buy the kitchen faucet we wanted. We went off, looked at several, and picked the one we thought looked the best with what we were doing.

When the contractor went to install it, he opened the box and a battery pack fell out. I couldn't for the life of me figure out why a faucet would need batteries. It turned out that you can turn it on and off by touching it anywhere (handle, faucet itself, whatever), you just leave the physical handle open and set where you want it, then you can touch on and off. I thought it was the dumbest thing ever and we'd never use it.

Flash Forward to now and it's one of the most used conveniences we've ever bought. All those times your hands are covered in raw meat or other cooking mess? Just touch the faucet with your elbow. Rinsing a bunch of veggies one at a time? Tap on, tap off. It works flawlessly, unlike those touchless ones at the airport: no delay and works every time. We will never have a kitchen sink without it - my wife wants them for the bathroom.

I needed a "lap desk" or something to put my laptop on, but I wanted it to be low-profile and I could only find a wooden cutting board. Now wooden cutting boards are the only thing I use as lap desks because most actual lap desks I find are super bulky.

A 3D-Printer, I thought I just play around with it and get bored, but you discover so many things that you can do!

The handle on the fridge broke? Print new ones. Need a Flowerpot? Just print one. The router needs a wallmount? I have one ready in a few Hours.

Also I can watch it print for hours, very fascinating and calming.

An ebike: I don't even really drive anymore most of the time and it beats the hell out of being stuck in traffic. Getting around is fun again.

I always enjoyed cycling and still ride my MTB, but for getting around town quickly, ebikes are hard to beat.

Bug zapper flyswatter. Like you can buy at Harbor Freight for a few bucks. It might not be a terribly effective solution to the overall fly population, but in terms of grim-bloody-vengeance-per-dollar, it's one of the best investments I've ever made.

My wife bought me a Beard Bib as a joke gift after I found it online one day. It's basically a smaller version of the bibs you wear when getting your hair cut, but with suction cups attached to the bathroom mirror to hold it horizontal and catch stray hairs when using an electric shaver. It looks ridiculous.

I now use it every time I trim my beard, even if my wife still laughs at me every time she sees me in it. Cleaning up all the stray hairs was always a pain in the ass, but this thing does a surprisingly good job at catching 99% of the hair, and I can just brush it all into the trash when I'm done.

My wife got me a fitbit. I resisted a little bit because I didn't want to have yet another device to monitor, charge, and maintain etc. I've been really surprised and impressed and how effective it has been in subtly encouraging me to make some small improvements in my habits. Not a bad deal for $100.

Mechanical keyboard. Almost had no money back then, but wanted to treat myself. It costed 100$, and I regretted it the next morning. Felt like shit, but it was so cool to type on.

After 5 years, this metal-frame keyboard managed to survive many outside gigs, long travels, literal war, and it's still with me. And I still love typing on it. Sometimes I code just to type. You can guess why I don't use code completion tools.

Bed sheet suspenders. Dumb problem, stupidly cheap, horribly made, and ABSOLUTELY fixed the friggin sheets being yanked off the corner of the bed twice a night by my tumble-dry-medium sleeper of a spouse.

When they finally broke after almost 2 years I sewed some that'll last 10 years and I don't regret them at all.

Scooter. Not an electric one. I had a thought once "hey I did ride one in childhood, maybe it can be a bit of nostalgic fun from time to time". Got myself the cheapest Chinese thing I could find, "no point investing too much into a fad".

Turned out a scooter is absolute peak urban mobility. Short distances become much shorter. Mid-long distances become short. Granted, for a longer trip somehow the time gains diminish, probably because it's not as efficient as a bike. But a scooter isn't a long-hauler. It's there to zip through an empty mall. It's there to be folded up in a second and brought into a bus or a shop without being a hassle. It's like 3-4 kg, not too fast for sidewalks but fast enough for bike roads, extremely easy to stop, doubles as a cart when carrying bags of groceries home.

The chinese one broke after 1 season because I was riding it everywhere. Then I got myself one from a better company, I chose it for small weight and portability. It's technically children's thing but I'm well below weight tolerance and also smol so it's easy to handle. It's already like a 5th year and whenever it's not raining or too cold I ride it for shopping, errands, leisure walks, to work... Almost daily.

Custom-made ear plugs. Even if you only wear ear plugs occasionally (I do when in a noisy hotel, or when a neighbor goes a bit too crazy), they are so worth having.

Basically you go to an audiologist and they put something kinda liquid in each of your ears to take a mold of your ear canals. A couple of weeks later, you have plastic earplugs that have the exact shape of your inner ears.

Upsides: • They work, always. I would typically use wax or silicon disposable ear plugs before that, and sometimes in the middle of the night they might move and let the sound in; those don’t. Also, foam disposable ear plugs don’t stay in my ear, don’t ask me why. • They never hurt. Since disposable ear plugs get shoved into your inner ear until they take the shape, they continuously push against the walls of your ear canals. I would often feel kinda bruised after using them for a long time. • They are crazy comfortable. Put your ear on a pillow, and you barely feel them at all. • But do they block too much sound? That’s up to you. Basically, you choose the level of noise you want to keep out, which I believe is achieved by using different kinds of plastic.

They’re not a trivial purchase (I think mine cost $150), but then you use them for decades, so it’s definitely worth it. It was a stupid purchase in my case, because I bought them on a whim out of anger against my neighbor’s party one night; but they’ve followed me everywhere since!

Monitor mounting arms that connect to the back of the desk. I have 3 times as much room on my desk now. It's amazing how much room monitor stands really take up. It's not just the actual stand but really the surrounding area because you can't really set any large objects in the vicinity. It really is a game changer to gain a lot of desk space.

I got a really girly looking beanie (I'm a guy) at a white elephant gift exchange and it became my favorite beanie. It got stolen and I'm sad that I can't find it again.

Small adhesive rubber bumpers or “feet” that came in a variety of sizes to put on the bottom of things. Was under $5 but has brought me some joy going around my home putting feet on anything that isn’t level or could scratch or makes noise. Something oddly satisfying about it.

I got the glasses with 90 degree prisms in them so you can read while laying down. The person on the product page looked like an idiot and thought it would be funny, but I'm on my 3rd pair now

Maybe not stupid, but I purchased a pair of bone conducting headphones just because I thought they would be better for running, and harder for me to lose. I wasn't expecting much, but damn, they have been so much better than I expected. Even though the sound quality isn't quite as good, they work so much better with my sensory processing issues, and I can just leave them on all day without concern. Because I've got curly hair, people don't even know I'm wearing them, and because they don't go in my ear canal, they don't impact my ability to hear/talk/interact with the world around me.

A Raspberry Pi. I bought it out of a whim and now I use it as a portable desktop computer, I can use Alpine Linux with my files and my setup on virtually any system that doesn't whitelist MAC addresses.

Especially handy when your university has contracts with Microsoft so you aren't supposed to use competitive software, I feel like I'm breaking the law.

A bidet off of Amazon, cheap and easy to install. I wasn't sure that I would like it but I like to only go at home now. Wife loves it.

A while ago someone posted a picture on Reddit of an old cast iron rotary food grater/slicer and asked "what is this thing?". A bunch of people said it was for grating things like cheese or slicing vegetables. Some people posted the original French or Italian names of it, which was difficult to find. Someone said look up "Rotary grater" and they're all over Amazon for dirt cheap. I bought a cheap plastic one for like $20, figuring I'd use it a few times and forget about it.

I use the damn thing multiple times a week for grating blocks of cheese. It can grate a 1 pound block of cheese in like 30 seconds, 2-3 rotations usually gives me more than enough cheese for myself. It's so much easier to use than a box grater, and no possibility of destroying your finger tips or knuckles!

A burr grinder for coffee beans. I thought coffee snobs were full of shit. I was wrong.

An Aeropress Go.

I'm far from a coffee snob, but figured I'd give this $25 piece of plastic a try because a good friend was raving about it. In the year since, it's been my favorite way to make myself a cup of coffee-- the ritual of it helps me structure my Saturday morning, the coffee tastes better than I thought coffee could taste, and I'm more excited to look at the flavors and whatnot from locally ground coffee.

I always have the opposite problem, I buy something I think is really smart and then never use it

Pizza bag. A really good one

Didn't think it would be a big deal but it's a game changer for takeout pizza. Hell, it's usually warmer than deliveries since I don't make any other stops

Massive difference even for a place 8 minutes away, and gets me warm great pizza for the places 20 or so away

A cheap usb microscope. I wanted to get into macro photography but my eyesight is pretty terrible even with glasses and struggle to see fine details so struggled to set the mounts up. (Small insects, grains, etc)

Saw a usb microscope for 20€ on Amazon and thought for 20 euro it’s going to be terrible but worth a punt. It’s bloody brilliant. Have used it for a whole variety of things from threading needles to soldering work, repairing stuff with glue and tightening up glasses as well as the macro stuff. Coupled with some ‘helping hands’ it’s a permanent fixture on the pc desk.

A set of small neodymium magnets. Didn't have a plan, only they looked "super cool and strong wow".

Used for:

• Locating needles in the carpet.
• Fishing keychains out from behind sofas, gap between garden deck and house, and so many other places.
• Makeshift fix for an old cabinet door that tended to glide open.
• Holding nails and screws while fixin' stuff.
• Attaching a soda bottle to the office lamp in a way that is easy to undo while still pissing off HR.
• Slapping it on a screwdriver to make it magnetic.
• Fidget toy.
• Regular ol' fridge magnet.

An air fryer. It was a bit of an impulse buy and I didn’t think I would use it very much but as it turns out it’s much more versatile than I initially thought. I’m actually considering getting rid of my regular oven since I’ve rarely used it since I got my airfryer.

VPN. I bought it during the pandemic not for privacy or government spy conspiracy shit, but because it was on "sale" (something like $40 for 38 months or something) and I wanted to try out if skirting geoblock was worth it. It's now probably one of the most-used tech we have in the house. Great for running Max obviously but also for work.

An impulse buy of a $20 micro wireless Bluetooth keyboard. Holy shit. Rock-solid design, ludicrously long battery life, excellent signal transmission, a replaceable battery with the option to use AAAs, a usable trackpad with sensitivity settings. I cannot stress enough how impressed I am with this device as an electrical engineer.

Now I can actually get real work/play done when I'm too depressed to get out of bed. It's also really useful for working with a Raspberry Pi. That plus a cheap LCD means I can just use it like an ordinary desktop.

If anyone is interested in this product, ask for a link and I'll post it in the comments.

A toy accordion I bought at a truck stop 30 years ago. I blew all of my $30 in vacation spending money on it and everyone said I'd regret it. It ended up kind of joke\prop instrument in all my bands and I still have it and it's still fun to play.

A cheap little green alien soft dog toy. My dog has destroyed every soft toy we've ever given her except that one. The head ripped a little at the seam, but we just re-sewed it. She hasn't made a big hole to pull out the stuffing somehow. And she loves it.

I wanted to get a backup, but the company doesn't make that toy anymore. I got an alternative from them and it got torn apart within a few days. I guess it was too good of a dog toy.

A reusable floss tool. I was trying to cut down on waste by ditching those single-use floss picks. It's just a forked piece of plastic that you thread with standard floss. I bought it 5 years ago and it's still going strong!

When Teavana still existed, I bought a teapot and some "teas" (Teavana was mostly herbal tisanes...but still.)

I don't drink coffee, so I imagined the teapot wouldn't ever be used...but somehow it ended up being a big hobby for me. Bonus: fancy teas from online stores are cheap to ship, because they're basically dry and lightweight. Like, if you want to become a food snob about anything? Tea really is the way to go.

The one learning curve I had (as an American) was learning that you DON'T steep the tea longer for stronger tea. You use more tea leaves/more tea bags. Steeping too long turns the tea bitter. (I thought I disliked tea when younger b/c I'd only ever had cheap tea bags left to steep for far too long.) Also, when brewing a green tea, they're really reactive to boiling water, so you REALLY don't want to use boiling water or it'll be a bitter mess. You want to either boil then let it cool, or get a fancy electric kettle where you can set the temperature so it's appropriate for green tea, oolong tea, or black tea.

A PVC pipe cap.

I was making a lightsaber for my kid, and bought a length of clear PVC from Home Depot. (I know, they have bad politics, but Lowe's didn't carry clear PVC.) My local store didn't have any clear PVC or clear accessories in stock, so I had to place an order for shipping, so I got a couple things "just in case" for the build. One of those was a pipe cap.

Didn't end up using the pipe cap, because lightsabers don't have that sort of end. It now sits at my desk as a teeny tiny trash can. Bits of thread from sewing, nail clippings, tags I clip off of shirts, a lot of things fit in the teeny tiny trash can. When it's full, I empty it into the trash, but for a rather small pipe cap, it holds quite a bit of small trash.

A stupidly cheap (£2?) fleece I bought off a sale rail on a whim, thinking I would never wear it.

I practically lived in that thing, and still use it today.

A mini keg of a Christmas beer. At the store after drinking a bit, thinking "Oh it's a little cheaper per ounce, lol". My wife rolled her eyes, but she lets me do stupid things. Next day I was thinking "Well that was stupid." But it was a few days before Thanksgiving, and we opened it then, and it turned out to be a lot of fun. Draft beer, at home! Fiddling with the stupid pour thing. It was just fun to have something different.

I bought an Ember mug because I thought it was silly. I ended up really liking the temperature control. I don't rush my coffee/tea. Now every sip is as hot as the first one.

The new Ember costs, I think, half again as much as the first iteration. It's a cute gimmick but I certainly wouldn't pay what they're charging now.

Magnet tape. Made hella magnets out of stickers