I have to be honest, I do most of my couponing from inserts and on websites. I DON'T have a smartphone... yet. But I know PLENTY of people have them. And if you can save money with smartphone apps, that's another way to stretch your budget. So, here's link you may find helpful. While I haven't checked out the apps, I HAVE used www.retailmenot.com (also mentioned in the article) when buying stuff online to try to find a coupon to save 10 or 20 percent on my total purchase... or to get free shipping.