High-tech help in the form of electronic price tags

CINCINNATI (Paula Toti) -- People have probably had this happen to them when they're shopping: the price tag on the item does not match what comes up at the register. Now stores are turning to high-tech tools to make sure people don't pay too much. From incorrect price-tags to out-of-date sales stickers, people are often charged more at the register than the price tag advertises on the shelf. In fact, in the past two years Whole Foods, Walgreens, Target and CVS have all paid steep fines for overch

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