Individualized "Crap baskets". When you find someone's crap lying around the house you put it in their individual baskets and they have to be taken up with them and emptied by the end of the night....and if it's not emptied, maybe the "crap fairy" will come during the night and steal their crap... I would love for them to be hidden somewhere though... hummm
Keep one in the shower filled with a mixture of half vinegar and half Dawn dishsoap. Use it to wipe down the shower while you are in there and your shower will always be clean.....This is THE magic formula!