The app "GetUpside" will give you cash back when you buy gas. In the app you claim the gas station, then you upload a photo of your receipt. No catch, no scam, I'm using it and got some friends and family on it.
Some stations do like 10 cents others do as high as 25 cents.. AND you can get an extra 20c on your first fill up when you sign up with code HGWM5
It also gives you credit to the gas station, which is further incentive. So if you get a tire rotation or buy something in the store, you will receive cash back from those purchases as well.
Spread the word, spread the code, and lets get more participating gas stations! This kind of thing will add up over time so be patient.
Download the app here.
or just get it from the playstore or app store.