Bill Gates, Warren Buffett and Oprah All Use the 5-Hour Rule Posted by dc17 on Monday July 25, 2016 @07:04AM from the inc.com dept. http://www.inc.com/empact/bill-gates-warren-buffett-and-oprah-all-use-the-5-hour-rule.html ( 2 comments | 2 points | on HN )