8 resourceful ways Elon Musk made money before he was a billionaire

Lucy Nicholson/Reuters Elon Musk is one of Silicon Valley’s most adventurous entrepreneurs, with his two biggest companies, Tesla Motors and SpaceX, skyrocketing in value over the last several years as he aims to transform the transportation industry. He's now worth$16.6 billion, but getting to that net worth was far from an overnight success story. Below are some of the most resourceful ways in which he made money before becoming a famous billionaire. He created and sold his own video game at...