To-Do Lists Dont Work Daniel Markovitz Harvard Business Review:
The alternative to the feckless to-do list is what I call “living in your calendar.” That means taking your tasks off the to-do list, estimating how much time each of them will consume, and transferring them to your calendar. (Don’t forget to leave time to process your email. And leave some empty space one to two hours each day to deal with the inevitable crises that will crop up.) In essence, you’re making a production plan for your work.
(Via Shawn Blanc)