Bar soap - after it's been used. I hate the stuff period, but dh insists. Ugh. Get it wet and if you don't keep using it, it gets all cracked and gross. Even some brands if not used - seems the more natural, the less shelf life.

His brand is Ivory. Ewwww. If it leaves that nasty of a film on the shower walls, I don't even want that on me.

Actually, kind of nice with him away. No goopy bar of soap laying around and the shower is so much cleaner lol.