The company that embedded wildly expensive coffee into your life now wants to make it fast, easy and nearly thoughtless to pay for it. For example, working with Square, Starbucks can turn your phone into a wallet that even tracks digital receipts (though we may not really want to know just how much we spend on latte and foam). Starbucks also launched what turned into the biggest LivingSocial promotion to date, selling 1.5 million gift cards in one day. Customers could also link the gift card to their loyalty card and keep on sippin'. Starbucks wants to be a "pioneer," says chief digital officer Adam Brotman, in blurring lines between technology, marketing and customer experience.