Earn Bitcoin while you shop online - mic drop. Seriously though, Lolli is a great idea. There are a variety of ways to get cash back from your online purchases, but what about using it as a way to accumulate bitcoin as an alternative asset (or stack Satoshis as the crypto-folks would say). Lolli works by providing a browser extension that pops up when you start shopping online to tell you which merchants provide Lolli bitcoin back offers and to track your accumulated savings/earnings.