While he has already accomplished far more than most of us will in our entire lives, the humble London 18-year-old says he leads a 'fairly normal life.'
Even the most successful business owners pinched pennies when starting up -- and many still do. Consider their money-saving advice when starting a business.
How twentysomething Shama Kabani of Marketing Zen Group wrote a master's thesis on Twitter and then went on to build a leading-edge marketing firm. Part of our annual Young Millionaires report.