From web developer to billionaire in 10 years or less...
How? Sex. Andrew Conru, the founder of AdultFriendFinder started out coding for others and realized that he'd be better off starting his own company. Now, he's a billionaire.
Here's the other pearl of wisdom. He didn't plan to start an adult site. Conru started AdultFriendFinder because he wants people to stop posting naked photos on FriendFinder, the site Conru started to connect people who wanted to do things like fish. Classic. Another case of the customer telling you what that want.
Read and be inspired.