As well as free wi-fi, it said the money would also fund signs with Quick Response (QR) codes which visitors would be able to scan on their smart phone to be directed to events and offers in the area.

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People waiting for trains in the subway were presented with a wall of products from the store, each with a QR code (Quick Response code) next to it.

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When there is something pleasant that one doesn't want to indulge in, like junk food or alcohol, the key to avoiding temptation is to interrupt the habitual response with a quick, easy alternative action, says Dr. Gollwitzer.

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