While people are tempted to say they have spring tree pollen allergies, it is helpful to know the exact types of trees you are sensitive to -- that way you can watch the pollen counts more efficiently.

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When you are entering a media interview, it is sometimes helpful to think of deleting your entire database of knowledge, except for your three main message points.

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"Cancer is caused by many different processes and inflammation is one of them, and if you could inhibit that process it would be tremendously helpful, " says Young S. Kim, program director in the Nutritional Science Research Group at the National Cancer Institute.

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Although that may be representative of the anticipated meeting, in rehearsal it is more helpful in developing a consistent and coherent answer if you have grouped the questions.

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Do you find it helpful in your work or personal life, or is it really a colossal waste of time?

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"You know, money is certainly a helpful yardstick, but it's not the only indicator of popularity or electability, " DeVore says.

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