Lara Parker for BuzzFeed

The app will link to your Facebook, but you can choose whether or not you allow it to post for you. It's beneficial for you that it links to your Facebook because the more friends you have using Cartwheel, the more coupons you get to use. For example: One week Cartwheel may offer 15% off women's shoes and the next, 10% off all women's underwear. You can search the app easily and find exactly what you need to buy.