I always market research my books before I hand them in by showing them to five or six close friends who I trust to be honest with me so they are very heavily re-written already.
If I don't need the money I don't work. I'm going to spend time with my family and friends and I'm going to travel and read and listen to music and try to learn a little bit more about how to be a human being as opposed to learning how to be somebody else.