During the course of the year a number of ideas just come up automatically. I could be walking down the street. Or shaving. An idea will hit me and I'll write it down. Then, when I'm ready to write, I check my little matchbooks and napkins and find that it is good or it's pretty terrible. There are other times when I don't have any ideas and I'll go into a room and close the door and I sit and sweat it out for a day or a month and eventually I come up with [something].