The device, inspired by customer feedback revealing that excessive weight (when lugging bottles home from the grocery store, that is) was a major barrier to greater consumption, will be rolled out across other markets in 2013 along with a mobile app for smartphones.

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Suddenly, it will be possible to not only track every customer, their height, weight and age, how long they looked at each item, what they started to buy but changed their mind, how long they stood in line, and a dizzying array of other variables.

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Customer service is without doubt a huge arrow in the marketing quiver, and a smart customer service representative is worth his or her weight in gold.

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