Groupon has come a long way since it became an Internet sensation with its deal-a-day discount coupon model. The site's popularity has dwindled in recent years, forcing it to revamp itself as a kind of Yelp 2.0. It's now become a great resource for consumers. Even better though, Groupon might now be a business directory but it still revolves around its great discounts. Each business listing offers a variety of sweet deals you can take advantage of, which means that you earn great savings every