RetailMeNot.com has got to be one of the most upcoming coupon sites on the net. You all know how using coupons can save money, well in just 6 short months RetailMeNot has grown into one of the most popular coupon codes sites on the internet.
There is even a Firefox extension that you can find at http://www.retailmenot.com/firefox.php which warns you when you are almost about to pay full price for something, that there is a coupon available that will actually save you money.
The amount of products available is staggering. There is even a vault.com where you can use the Compatibility Matching System from eHarmony to find your perfect match. This site even features a marriage counseling service for people already married. Talk about a one stop shop, how cool is that?