Hey folks. I figured I'd share this for you in Spamvertize - where you can easily ignore if it doesn't appeal to you.
Early this year, my wife got me going on Ibotta. She'd been trying for a few months, but I just hadn't bothered to look at it... and I feel silly for waiting.
The deal is that it's a free app for your phone. It has all kinds of retailers (Target, Wal Mart, Best Buy, etc) - plus an online retailer section.
The in store stuff is pretty cool. They have all of these offers for stuff you are probably buying anyway. A dollar back on Fruit Loops, fifty cents on bacon, a dollar on Klondike bars, and so on and so forth. You scroll through, add the offers, then submit your receipt after you finish shopping. Within a day (usually, within a few minutes), they credit your account. Once you hit a certain threshold - I forget, I think it was ten dollars or something like that - you can withdraw the balance onto various gift cards, paypal, venmo, etc, etc.
I started Ibotta in February, took a break with the baby's birth, picked back up. In May, I cashed out a hundred dollars. As of today (July 29th), I'm at another $87.
No, you're not going to get rich... but you're getting cash back on stuff you are already buying. I use this as a way to help save for our Disney World trip next year - I withdraw and immediately buy Disney gift cards with it.
I won't lie, it behooves me to get you hooked - I get a little referral if anyone installs the app and actually uses it... and if I can get one more person to sign up and use it by the end of the month, I get a $20 bonus. 
But seriously - check it out. It costs nothing but a very small amount of time, and again, you're just buying stuff that you were already buying (groceries is my big deal, though they do have a bunch of other stores).