John Carmack, legendary creator of the first and some of the finest 1st-person shooters, kept some sort of work diary in the form of .plan files. They serve as a form of microblog and capture my work and thoughts for the day (more: http://www.team5150.com/~andrew/carmack/plan.html).
As we just launched Web FWD, the innovation accelerator program from Mozilla, I will start creating .plan files and post them to GitHub (actually I have a bunch of .plan files up from the early days of my work on Web FWD).
When I accomplish something, I write a * line that day.
Whenever a bug / missing feature is mentioned during the day and I don’t fix it, I make a note of it. Some things get noted many times before they get fixed.
Occasionally I go back through the old notes and mark with a + the things I have since fixed.
Feel free to follow along…