Go over here http://www.chipotlefriendorfaux.com/
and play a game about ingredients. Pick a Chipotle item and a typical fast food option. Then match 20 ingredients to Chipotle food, fast food, or both. Play through for free Chipotle coupon (while supplies last) and a chance to win Chipotle for two for a year.
I'm posting this as a discussion topic since I'm not sure everyone will get the coupon. But I think you'll get a coupon until they run out, I did. After the game, it said
There's free food in your phone
You scored a buy-one-get-one coupon and a chance to win burritos for you and a friend for a year. Enter your deets so we can hook you up.
You'll be signing up for mobile offers and text updates from Chipotle, up to 4 msgs/mo. Msg & data rates may apply. Text STOP to cancel. You'll get your coupon text message within a few hours. [Update: may take up to 7 days.]
It's valid on Burritos, Bowls, Salads, or Order of Tacos.