If you’ve ever encountered chain stores selling the same item for different prices (I’m experienced it at Target and Walgreens), this article is for you.

Forget clipping coupons and searching through the sales circulars – if the authors of a new study have their way, you could save up to 10% on your groceries just by shopping in a different part of town.

Have you ever paid more for a product in one chain store, and less for the very same product at another store in the same chain? That’s often the result of “zone pricing”, in which retailers deliberately charge different prices in different stores. You might experience it from time to time, but a couple of researchers say it doesn’t happen nearly as often as it ought to.  Read more here.