Oh! Just remembered this one! When he takes a shower, he leaves his dirty clothes on the floor of the bathroom! Some days there will be piles of clothes that he takes off and just tosses on the floor! And he doesn't ever put away his clean clothes, too! He would rather rummage through baskets and then rewash them after 5 days because he doesn't know what's clean and what's dirty!
I don't even let him do my laundry anymore because I've ended up with too many shrunk, color stained, or just plain lost pieces of clothing since we started living together!