The Only Way to Get Important Things Done - Tony Schwartz - Harvard Business Review →

It turns out we each have one reservoir of will and discipline, and it gets progressively depleted by any act of conscious self-regulation. In other words, if you spend energy trying to resist a fragrant chocolate chip cookie, you’ll have less energy left over to solve a difficult problem. Will and discipline decline inexorably as the day wears on.

This is very much in line with the cooperative ideas of Sensible Defaults and Final Choices that I have written about before. The less you have to think about things like what to wear, or buy, or eat the more you can focus on other more difficult or important choices.