Do It Now by Steve Pavlina: "Trying to cut out time-wasting habits is a common starting point for people who desire to become more efficient, but I think this is a mistake. Optimizing your personal habits should only come later. Clarity of purpose must come first. If you don't have clarity, then your attempts to install more efficient habits and to break inefficient habits will only fizzle. You won't have a strong enough reason to put your time to good use, so it will be easy to quit when things get tough. You need a big, attractive goal to stay motivated. The reason to shave 15 minutes off a task is that you're overflowing with motivation to put that 15 minutes to better use."