I believe that one of the greatest challenges faced by Entrepreneurs is using time effectively. I have started logging my hours into excel and have been surprised at how little I was accomplishing. I have read Steven R Covey's First Things First and Brain Tracy's Focal Point which both really made an impact on my time usage. I have been keeping track of my time in 30 min intervals. This will help me see how my time is being used and in some cases wasted. Entrepreneurship comes with a lot of freedom but successful entrepreneurs will closely watch how they are spending their time. I know that by planning out our day in 30 minute intervals will allow you to live a more full life and dedicate more time to what is effective and what is truly important. Entrepreneurs need to learn to manage their time. Good Luck.