Ibotta is a mobile rebate app that gives you money back on purchases you make at the store. All you have to do is download the app, find an offer that interests you, unlock the offer (by reading a sort article, viewing a recipe or watching a video) and scan in your receipt. The rebate funds get added to your account and when you reach $20 you can cash out using PayPal or Venmo. They have gift card options available as well.
Right now if you sign up using my referral link you can get an additional $10 added to your account after you redeem your first rebate. That would put you halfway to cashing out already. You must be a new user and the app can never have been installed on the phone you are using. Go here for more information.