I signed up for National Novel Writing Month, or Nanowrimo. Most of the material provided to motivate you also seems like a good way to whittle away the time. I think I'll avoid it most of the time. In any case, the goal is 50,000 words in 30 days, that's 1666 words per day. On a good blogging day I've done over 800 words per hour, but 400/hour may be more reasonable. I'll see what I average.221 in 15 min. A decent start.
Project Woolly Coelodont is what I'll be working on, and I won;t count what I've written so far, since I'll be rewriting most of it with changes in characters I've been thinking about. Notably, I need a butler.