Years ago I read that Ernest Hemingway always finished his writing day knowing exactly what he'd write first thing the next day. Gail Giles describes what she calls The Hemingway Method in a guest post on writer's block at Cynsations.
I used to be on a listserv with Gail Giles. I believe I was known there as "the other Gail." As long as I was known as somebody, I was happy.