Once upon a time, two industrious grads from Harvard Business School got together and hatched a business plan. They thought women would be willing to pay $10 per month to receive a goody box at home containing sample sizes of luxury beauty products. They were right. Because in just three short years, their company, Birch Box, has gone global. They've added a subscription for men's products as well and now deliver to the UK and France. Not surprisingly, copycat businesses have been cropping up all over the place, which is a good thing for us. Who doesn't like the idea of receiving a package in the mail, a present to yourself? Beauty products were only the beginning. Take a look at what entrepreneurs have been cooking up to deliver right to your door for an affordable monthly fee.