Brian Clark, the founder of Copyblogger and Rainmaker Digital, was in law school when he already started thinking of an exit strategy.  After spending a few years as a lawyer, the emergence of the Internet sparked his curiosity and he began spotting opportunities for making money.  He quit being a lawyer and pursued entrepreneurship full-time.  Today, he has started nine businesses with eight of them being successful while learning to become well rounded in all aspects of his life.