Want to know where something goes? That's easy.
1. Pick it up. Hold it in your hand.
2. Pretend you don't know where it is.
3. Go Look For It.
4. First place you look - that's where it goes! Now put in there, consistently.
Note: this won't help you find something if you don't know where it is. But if applied consistently, you won't have to worry about that ever again, more than once! Because going forward, it'll always be where it goes.