SI have no specific suggestions of products, but I found a wee little baby needs very little. Focus on things that will help you help the baby and make things easier for you… untill they start moving about… then I’d look for stuff at local used shops/ websites. At that age kids outgrow things fast and people get rid of practically new stuff, and less disappointing if the kid doesn’t really care about it.

Someone mentioned window shades- I’d consider dark and ceramic tints on the windows if you’re keeping the car long term (assuming you have a car). It does help keep everyone cool and sun out of little eyes.