"Should I Start Another Business?"—Chris Cooper Answers

So you've got a successful gym business. You're paying the bills and making a nice profit, too. Time to start another business and double your money! — Hold on a sec.Chris Cooper is no stranger to starting businesses, and in his original book, "Two-Brain Business," he describes your first business as the cornerstone to a larger platform that you can build.But what he didn't mean was to go open a coffee shop, pizza joint or even a yoga studio. Here, Coop offers guidance on when to start a seco...