Sometimes, not trying to fix something is precisely what's needed to fix it. It's a hard strategy to follow because we have penchant for being proactive. If there's a problem, we feel better when we attack it aggressively. But consider the idea that we might spend a lot of time, effort, and money solving problems that can't, in fact, be solved with time, effort, and money. In 2009, Americans spent about $3.6 billion on over-the-counter cold, cough, and throat remedies, according to the New York Times. And yet, the article concluded, there's very little evidence that any of those medicines do anything to cure, or even shorten the duration of, a cold. And some remedies, like taking antibiotics, bring along side effects that risk making some people worse. In other words, the best strategy for coping with the common cold is to do nothing. So how do we know whether to do something or nothing? "When many cures are offered for a disease," wrote Chekhov, "it means the disease is not curable." If past experience or data suggests that multiple solutions are possible but none are reliably successful, nothing may be the best strategy. Also, if you've tried two or three solutions and none of them have worked, perhaps it's time to try nothing.