Whether you're studying for a test, practicing for a sports tournament, or starting a business, focusing on a single task is the fastest route to success. That's probably why Bill Gates, Warren Buffet, Steve Jobs, and many more successful people say that the single biggest reason for their success is their unique ability to focus. 

While everyone believes that they can focus, brilliant people all over the world are working hard (and making a lot of money) making phones, apps, video games, TV...