Great tip!
Last year at a garage sale I picked up several clear plastic boxes for storing shoes.. just like a shoe box, except plastic. Great for storing misc bench items.
I also clean and save those small applesauce, pudding and 6 or 8oz yogurt containers. Great for separating/storing small parts while building, and also for mixing up some nasty potion for seam filling or painting. Use 'em, pitch 'em!