President Obama only wears blue or gray suits. As he tells Vanity Fair, it's a way of managing his willpower. “I'm trying to pare down decisions," he says. "I don't want to make decisions about what I'm eating or wearing. Because I have too many other decisions to make."
Business Insider: 14 surprising things that affect your willpower and decision making
US president Barack Obama disembarks from Air Force One upon his arrival at Schiphol Amsterdam Airport on March 24, 2014 to attend the two-day Nuclear Security Summit (NSS) in The Hague.
