I have this plastic container that has 36, 1 x 1 inch, plus about 1.5 deep seperate squares in it. I picked it up in a dollar store, it is almost like an ice cube tray but bigger. I am actually not sure what it was originally designed for. I think it was for organizing beads or something. I have seen similar things at Michaels craft store.
But I use it for putting the screws and nuts etc. in as I tear down a playfield. I use each seperate section for eash ramp, plastic or anything else. Then I just work backwards as I put it back together, you know the first thing you removed screws/nuts are in the first square. Plus you can stick a piece of masking tape with a label if you need too.
But I also take lots of pics and use ziplocks with a sharpie as well, If I'm taking everything off.