I'm not sure if I'm the only one who gets annoyed with this, but it is so frustrating having to go through all the crap in my warehouse just to find the one thing I want!
Tidying it up seems to reset, and not clean it up for everyone, so why not add the tried and tested inventory system that other games uses! Slots? One item uses one slot as the list gets bigger you scroll down.
There is a good reason every other game uses that system... It's clean, simple and it works!