New answers tagged distribution-choice
I've been using Puppy Linux for this. (Precise Puppy) It is very USB stick friendly: It loads your save file to RAM on boot. It saves your data at an interval (I set it to 30 minutes) and on shutdown to your USB stick. Additions are partially done via layered file systems. This reduces the writes to your USB stick, so that it lasts longer.
Top 50 recent answers are included