I have a tall dresser inside my closet. My gently worn things usually get laid across the top of that. If something is still there after a week, without getting put back on, it goes into the wash.
I am terrible about wearing stuff for a few hours and then not wanting to put it back in my clean clothes, yet... it isn't dirty! Our weather changes drastically here. It will be 30* when I get the kids off the school, upon which I am in the house not getting dirty... until about 11 a.m... when if I go out of the house anywhere, the clothes I wore at 6:00 are too hot for the temperatures (often up in the mid 60s plus the sun coming in the window glass of the car... making it just too hot). Often, I wear the same thing in the morning hours for a day or two or three, then wash it.
I'm bad about blouses like that, too. I wait to take my shower sometimes until after I've gone running, and then hop in the shower and put on fresh clothes JUST to get into the car and run pick up a kid and sit and wait for their activity to be over. Or run into the grocery store and then come back and get them, and then go home. Essentially, I am just putting on nice stuff to sit in the car. Seems wasteful to bother washing it, yet, I don't want it back in my unworn clean stuff, either. Ugh.