I have a To-do list that tracks everything I ought to do: blog posts to write, bugs to fix, emails to send, and side projects to continue. This is not a list of things I will do today;1 [1 I sort items I plan to do today to the top of the list] the purpose of the list is really to avoid forgetting stuff, to get it out of my head so that I can stop thinking about it. After using the list for a while, I noticed a problem. I felt good when the list was short, and bad when it was long. So, I avoi...