Remember last year, right after you had just finished 2012's book, you were feeling so good you thought you'd give it another go? Excellent decision, aside from the fact that you completely spaced on the January 15th deadline until last night!
I can't even blame my procrastinating ways... I really did forget. When faced with such a creative deadline, I generally chain myself to my desk, listen to the same songs over and over, and make a mess until something makes it on the page. Works like a charm.