I’ve designed a small-parts chest that’s as useful as it is simple to make. I’ve found those disposable, plastic containers for leftovers are ideal for small parts, such as screws and nails. The containers come in a variety of sizes. I like the “soup-” sized ones that measure 6 in. x 4-3/4 in. x 2-3/4 in. They cost about $3 for a five-pack. The overhanging edges of the container fit into dadoes cut into the sides and dividers of a simple box. The containers work like drawers with or without the lids. I keep the lids on mine so my screws don’t end up packed in sawdust.