Kari Byron has moved on from busting myths to sifting through the plethora of Internet life hacks (those helpful how-to shortcuts that make life a little less stressful) to bring you the best of the best on her American Express web series EveryDay Genius. Kari says of AMEX, who launched its EveryDay credit card last April, "They’re into celebrating everyday moments, which is perfect for this holiday season...We’ve tested millions of different life hacks and come up with a few of our favorites; that way, your holiday season could be a little easier."