Studies have shown that shower time can be creative time. The relaxed routine of a shower allows the brain to move from analytical mode into creative. That is the reason behind so many good ideas occurring in the shower. To avoid losing those ideas AquaNotes has created a waterproof notepad.
I have always kept 3x5 cards scattered around the house and for a time used a scuba waterproof slate in the shower. If you are losing your best ideas down the drain, a waterproof pad may be just the answer. If not place a stack of 3x5 cards by the sink. For more info see AquaNotes' website and video.