I went on a shopping expedition with some friends last night and, like many other shoppers was lured in by a a rack at H&M bearing the following sign: "Buy 1, Get 1 Free" with the usual caveat that the free item must be of equal or lesser value.
I picked out some shirts and stood in line for about 15 minutes while the customer in front of me argued with the cashier about the way she was being charged for her "Buy 1, Get 1 Free" purchases. The cashier patiently explained that, if she really wanted to, she could save some money by paying for everything separately, which would require about nine separate transactions. What?
Here's how it works. Let's say that you buy four items from the "Buy 1, Get 1 Free" sale, with the following prices:
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