On a few occasions i have gone to my local Wal-mart to return some item i bought without having the receipt for it. It used to be that they would simply ask how long ago i bought such an item, and i would say less than three months ago, knowing that this was their cut-off point for returns or exchanges.
Now, however, i can't "get away" with this, because apparently they now have some sort of technology that allows them to know exactly when i bought the product simply by either scanning or entering some information from the UPC label or something into their cash register/computer terminal.
My question is, how the h**l do they do that? I mean, they can't be putting different UPC codes on their products each and every day, so they know exactly when you are buying one of their products. I'm baffled......anybody have an insights about this? Thanks
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