SP--that is too organized and logical for me.
I start with a small baggie, usually the ones that the CGW or CZ parts come in. Then I add tape labels to the parts I remove from the gun and put the factory parts in the CZ CGW baggies as I replace them or screw them up. The individual parts baggies go in to quart freezer bags with the gun model written on the outside. Those baggies go in to a larger baggie, which are thrown in to a large tub on the floor of my shop.
Finding a 75B detent requires a large table or car hood, good lighting and 30 minutes. Sometimes I put everything back in the crate when I'm done, sometimes I don't.
The good thing about this method is that it refreshes my memory on what all parts I really have in the shop. The bad thing about this method is that most of the time, I don't need the refresher, I need the part!
Joe