okay! drawers are pretty much complete, and should be decently easy to reproduce in other environments. unless something changes down the line, you will always have infinite storage space in your bag; the drawers mostly exist as a way to find items in different environments. you can deposit stuff in them purely because it'd be weird if you couldnt.
that said, i will likely come up with a few interesting scenarios where putting stuff into a drawer will have an impact on gameplay.