Minimalist Soap Tray

Don't store things that clean dirty things on dirty things because they need to be clean to make dirty things clean, otherwise, you'll have to clean the clean thing you use to make your dirty dirty self clean, and that's obscene. You're above that, and so should your soap. Literally. Stop leaving it all willy/nilly just sitting on top of your tub. It's gross, leaves a residue on your tub, and provides an always-moist place for bacteria to grow.