In the last five years, what new belief, behaviour, or habit has most improved your life?
You'll see I wear only gray or blue suits. … I'm trying to pare down decisions. I don't want to make decisions about what I'm eating or wearing. Because I have too many other decisions to make. … You need to focus your decision-making energy. You need to routinize yourself. You can't be going through the day distracted by trivia.
Michael Lewis, Vanity Fair, October 2012 issue, 11 September 2012 source ↗