Thirty-eight city councils in the U.K. have proposed that chewing gum makers like Wrigley pay a penny-a-pack national gum tax.

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The Keurig system has proven to be a nice employee perk and businesses are installing thousands of them, while Green Mountain also reaps a stream of pure profit from coffee roasters who pay a fee to use its K-Pack cups.

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And some Labour MPs have protested that low-income home sellers, particularly in the north east of England, will struggle to pay for the pack.

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