6. Checkout 51

Get cash back when you do your regular grocery shopping with this app. Make extra money that you can spend how you want. Just check out the weekly offers, and upload a copy of your store receipt so that app can verify your purchases. You’ll get cash credit for products that match up with the weekly promotions.
How much can you make?
Cash back ranges from $.50 to $5 a product. You can cash out when you reach $20 in earnings.
Sign up with Checkout 51 here and start making extra money when you grocery shop!