I've finally found a bag which nicely fits almost everything I want to carry every day, and alos makes everything easily accessible - it is about the same size as what I used to carry, but now I no longer need to dump everything out to find what I neede, even with some lose parts still in there.

Contents:

Center:

• 4 empty 64 microSD with SD adapter
• one rpi 2040 with USB-A interface
• headphones
• bag of female jumper cables, with male-male adapters
• a collection of the most used NFC keyfobs

Left side:

• USB-C cable with attached USB-A adapter (USB3, missing on picture)
• two USB-C to headphone adapters
• satechi USB-C power meter
• headphone splitter
• USB-C to SATA adapter
• USB-C smartcart reader
• VGA to HDMI
• USB Ninja (USB-C)
• proxmark3 with battery/bt
• collection of NFC magic cards

Right side:

• USB-C hub with charging port
• miniDP to HDMI
• small USB-C dock
• USB-C to whatever adapters (mini, micro, B, HDMI, ..)
• Chameleon ultra
• MPP pen
• Ninja USB remote
• USB-C to serial, connected via jumper cables