The idea of constraints driving creativity is an old one (perhaps one reason why those old movies made in the days of censorship are so powerful, as they found ways to tell what they couldn’t express directly?).

So I can count on you joining NaNoWriMo next year? There are also projects to make an album in a month (runs concurrenly with NaNoWriMo, making it impossible for even the most caffeinated to do both: could that be a constraint that forces you to choose?), and there is always the 24 hour comic book challenge.