The Ups And Downs Of QR Codes. (OK, It's Really Just The Downs.)

QR codes have always been deceptively easy to use, for anyone other than shoppers. Business Insider recently some of the worst QR code deployments it could find and it's worth a look.

But the retail examples were particularly interesting, such as Subway putting them on employee shirts, which is a place that employees report no one even tries to scan. But our favorite, depicted here, is a sign on how to use QR codes. And to give the lesson? Yep, the shopper has to scan a QR code.

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