Clean the shower after you (or someone else) has just had a nice hot shower. The steam loosens the gunk. Rather than using stinky commercial cleaners, try Avon Bubble Bath and an old bath pouf. Or, even better, shower, deep condition your hair, then shower again.
I constantly crave sweet treats: ice cream, cheesecake, CHOCOLATE! I have splerged on fancy hand creams - you'd be amazed at what they have out there if you look. Not only are my hands busy rubbing on the stuff, but it satisfies the sweets craving.