The mere mortals among us may think that if our job allowed us to creatively play for millions of dollars a year, we'd be all too happy to spend our nonworking time relaxing on the beach in St. Tropez after sailing there on a private yacht. But in the spirit of entrepreneurship, many celebrities take their time off from making oodles of money to start new businesses -- thereby making even more money! Here are some of the celebs who, through hard work and the ability to capitalize on an already-famous name, have turned their millions into millions more.