(FORTUNE Small Business) – Aspiring entrepreneurs are always warned that they'll have to work harder than corporate employees. But the secret that veteran business owners often keep to themselves is that entrepreneurs have more fun--and not just at the office. While a recent study showed that 30% of business owners regularly work more than 60 hours a week, they can control when they put in those hours (and often, thanks to new technologies, where they do so). In the following pages, 14 entrepreneurs show how they use clever time management, delegation, and wireless gadgets to get themselves away from the office to do the things that really matter: racing cars, restoring vintage planes, or spending time with their kids and on volunteer work. Such leisure pursuits, say these business owners, make them more effective bosses and competitors. It may seem counterintuitive, but getting out of the office could be the best thing for you--and for your company.