Making it’s debut at Mercedes Benz Fashion Week, we all received Vivienne Tam’s cool new accessory called the” Double Happiness” Square and it’s a credit card reader. Square, is a small plug-in that allows anyone with an iPhone, Droid or iPad to accept credit cards. How cool would your business be if you can simply attached this little gadget to your phone and take a payment on the spot. Not only is Vivienne creative, she is business savvy. I got this awesome accessory for free at the show, but soon you can click here to purchase. The awesome part about purchasing this item is not only does it move your business forward technically; $2 from the purchase of this $10 product goes to the Happy Hearts Fund, a nonprofit organization founded by model and humanitarian Petra Nemcova. Gotta love the gadget that gives back.