My wife and I use a variety of dietary supplements that come packaged in sturdy 8 x 8 x 8 white corrugated boxes. They have a good lid and close easily and well, and they're too good to throw out so I've got a big stack of them on the top shelf of a storage closet. About six months ago, the spare parts began to get out of hand and disorganized and I began to put these boxes to good use. They stack easily, they're white - so I can take a Sharpie and mark "Rear Derailleurs" or "5-speed freewheels" or whatever on the outside, viewable flap; and most of my components (the smaller ones, anyway) are in ziplock baggies to keep the dirty parts from soiling the cleaned up one, as well as to contain loose screws and bits and pieces. The baggies fit easily into the boxes; I can easily reference the kind of parts I'm looking for to go with a particular build. I'll post a picture when I get back in town next week.