Mark Cuban: Living Your Best Deals at Any Age

Give Mark Cuban credit for getting things done.  He went from tapings of the hit ABC reality show Shark Tank to his long-awaited insider-trading trial last week (a civil suit involving a 2004 stock sale), purportedly dazzling admiring jury members, while still managing to keep up with myriad business demands. On top of it, he emailed fast answers to our questions.  Here, the billionaire Dallas Mavericks owner, 55, shares his thoughts on living your best deals at any age. Is …