The Procrastination Doom Loop occurs because "(1) We're think we're in the wrong mood to complete a task, and (2) We assume that our mood will change in the near future, which will help us complete the task," but of course it doesn't.

http://feeds.boingboing.net/~r/boingboing/iBag/~3/x0VkqAf7Wp8/procrastination-is-about-antic.html