Like RAW said, I like the Plano type boxes and other makes of organizer boxes for various parts. For the smallest parts; split rings, clevises, etc., I use some of the drawer organizers. Same thing, label each compartment with item, size, color, make, model and to make it easier on me, I attach 1 item on the face of the drawer with hot glue so I can see at an instant what is in each one. Oh, and I like to include where I purchased from also.
Truth be told, i got the ideas from my wife and oldest daughter on how they manage and organize their crafting stuff.