The secrets and strategies of the super successful are revealed, as ABC News introduces viewers to four entrepreneurs who have turned big ideas into big money. Jeff Skoll, co-founder of eBay - Skoll is a man who is living proof that nice guys can finish first, and, along the way, revolutionize how the world does business. Dov Charney, founder and CEO of Charney's American Apparel clothing stores tells John Stossel how he went from a college dropout -- and at one time bankrupt -- to being one of the fastest growing clothing makers in America. He also talks about some unconventional business philosophies which make him controversial. Kimora Lee Simmons, Baby Phat - The secret to Kimora Lee's success might be summed up in one line: When you've got it, flaunt it. Jim Sinegal, CEO of Costco - With tens of millions of shoppers, discount warehouse chain Costco has become a staple in the lives of American shoppers. But it's not just Sinegal's costumers who love the store, it's his thousands of employees. Sinegal is anything but your typical CEO... he wears a nametag, talks to all of his employees and even answers his own phone.