United Continental paid an average of 242.2 cents per gallon of jet fuel. (Read ConocoPhillips Loses Weight, Boosts Profits on Lower Production).

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"As she loses weight and becomes more fit, she is burning fewer calories doing the same thing, so it is critical to change things up, " Jampolis said.

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That's because obesity leads to so many different diseases--diabetes, heart disease, arthritis, mental disease--that it's hard to separate out the reasons for the reduction in costs once the employee loses weight.

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There is absolutely nothing you can do to improve the taste of beef more than dry aging it, which concentrates the flavor but is costly in terms of both storage and waste, as the meat shrinks significantly and loses weight.

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"I told them, 'Look, by the time it gets in the pen to get weighed, it loses a lot of weight', " Mr. Gaede says.

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