A good 70% of the people we spoke to had no idea what we were talking about, but the other 30% love QR codes. Here's why.
Free stuff
"Whenever I go to the movie theater, I scan them for free popcorn," said Christine Mendoza of Covina, Calif. "I also use them for discounts on bars of soap. I scan them and get a dollar off."
What's a QR code and why should you care? – USATODAY.com
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