Having a busy calendar might actually be a warning sign that you are failing as an entrepreneur. Many people think that being busy means being productive, but it is often just a bad habit that keeps you from your goals. Successful people like Warren Buffett and Bill Gates have learned that protecting your time is the most important thing you can do. Warren Buffett uses a special strategy called the 25/5 rule to stay focused. He writes down 25 goals, circles the top five, and then ignores the other 20 completely so they do not steal his energy.