Here are the deals we heard about from founder Carrie Rocha on 1/31:

Free $2 Target Credit with Shopkick App
Through 2/1, users of the app Shopkick can get a free $2 credit. Just register for the offer, then use the app from a mobile phone on your next visit to a Target store. This offer is good for new or current Shopkick users.

Free Purina Pro Plan Dog Food Can at Petco
Members of Petco's rewards program (it’s free to join) can print a coupon good for a free can of Purina dog food. The coupon is good in-store through 2/28.

Free GNC Vitamins for First Responders
If you’re a first responder, just print the page off the GNC website, bring it in to a participating GNC store with your first responder ID, and receive a free bottle of multivitamins.