Every month or six weeks we get a mailer from our local Family Dollar. Most of the coupons are for stuff we don't use anyway, but the last few have had 5.00 off a purchase of 25.00.
The first two? Well, the first two coupons I used to seriously stock us on toilet paper. Mind you, their toilet paper is already 1.50 cheaper for the same number and size rolls for a 12 roll package as my normal grocery store. Add in a 5.00 off coupon, and those two coupon runs saved me nearly 2.50 per package of TP.
This time, I had no use for MORE TP (or at least, no room...) So I went on an exploratory walk of the food aisles. My goal was to buy nothing I would not buy eventually from my local grocer, and to buy nothing for more than I would buy at the grocer either. I had never explored their grocery section -- turns out, they have many brands that I buy anyway, for WAY less than the grocer.... No fresh food, but select shelf stable items did get bought...
Name brand tuna in water, beyers ice cream, soup for the "emergency lunch" stock, noodles, oatmeal, mac n cheese for the easy weekend lunch, and canned pineapple in juice got bought. All at the same quality and brand as the grocer. All already around 30% or more cheaper than my normal. Add on the 5.00 off 25 coupon and I paid 22.00 for 17 items shelf stable items that I would have eventually bought anyway.
Admittedly little health benefits to many of them, but they are all last minute lunch/dinner items for those "no leftovers and no time to prep" days that otherwise end in take-out. That and our normal breakfast of oatmeal, lunch side of sliced pineapple, and necessary evening ice cream fix ;)
Also important to note that we pass this Family Dollar everyday. You cannot get from our house to town without going by. So no extra gas either!