When you see a “sale” price on a store shelf, you expect to pay that price at the register. When you see something marked as a “Great Buy,” you might believe that it’s been discounted. And when a store advertises a “Last Chance” or “Clearance” sale, you probably have reason to think that those items won’t be in stock much longer. But Walgreens — and its subsidiary Duane Reade — have different ways of thinking about the above scenarios, and it’s gotten them into trouble with the state of New York. [More]