David Allen is an evangelist for the idea of what he can really melodramatically call 'Karen sacrifice' If you persistently make and then break deals with yourself, if you put things on the calendar to force yourself to do things, you're breaking a deal with yourself. So why would you agree to do 301 hour tasks in the same day? You have to reject the ones that are not the most important to you to go straight back to David Allen. He says: "I don't mean to get all heat up about that"