I was confused by the concept of Groupon for a really long time, because I thought that you actually needed a group to be able to make use of the coupons on the site. Yeah...

I love Groupon. Groupon is awesome when you want to try something new (especially food) but you're not sure if you'd like it, so you get it for cheap. It's also great for discovering things you didn't know about and taking a friend along!