I've tried this before, but it always seems to fall apart at some point, usually after the first failed goal. I plan to work on so many pages, or do so many critiques of other people's work in a day. Knock on wood, I started yesterday and it's actually going well so far.
I have a flip calendar in front of me and have my goals written down for each day. I tick them off as I accomplish them. I need some lunch, then it's time to stop playing with my blog and get the other half of today's work done.