A few days ago I got tired of the closet mess in the bedroom. That is "Bob's closet" and for a few months now I haven't been hanging his shirts or tshirts back up. So they're all in a pile on the floor. Meaning everything in that closet hasn't been worn in probably 3 months.
I took EVERYTHING out of the closet and put it in the spare bedroom. Then I hung up whatever was on the floor. The closet is SO much cleaner! Amazingly so! We'll see if he ever goes into that spare bedroom to look for something. My guess is he never will.
Keep in mind he already has an "office room" with a closet where we'd hung all his second-tier shirts. He hasn't been in that office closet in probably a year. So I think we're at the point where we can give away everything in the office closet. Then we can move all the newly removed shirts into that closet. And then see in a year if he's gone in there (again)