Lots of thumb drives. My laptop used to not have much storage and most of my files would be on those thumb drives.

My first one was 8GB, then 16, then 32, 64, 128, now 256.

Each time I got a new one I would copy the old files to it, kinda like these crabs https://youtube.com/watch/...

All of them are in a little box on my desk right now, I use the old ones for backups. I replaced the laptop's hard drive a few months ago so now I'm less dependent on thumb drives :)