Honey is an app that can be installed on your browser. Whenever you purchase something it can automatically search for coupons related to your purchase so you pay less: Honey. << Try it out, tell me what you think.
Get free app now: Honey Coupons App.
Honey is a pretty good app, however, you can save yet more money by going to different websites.
I have discovered this app a couple of years ago and have the extension installed on all my devices. I know the app triggered a few times while I was trying to purchase something but I have difficulty remembering if I had actually saved a few dollars of my purchases because of it.