History is full of stories about major battles that have been lost because of the tiniest mistakes, of huge business failures that were the result of the seemingly smallest miscalculation, of tragedies that were caused by a single error, of people who died because of one small misstep, of accidents that happened because of one small lapse in judgment. As it turns out, sometimes the stuff we overlook winds up being the most important stuff after all. The saying “Don’t sweat the small stuff” turns out to be bad advice. Especially in battle.