You never know when you are going to need it and a great scented candle, a cool pack of playing cards or a great book are perfect gifts for a dinner party hostess or a weekend hostess.

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Experiments by Andrew Gallup at Princeton University, his father Gordon Gallup and a colleague found that yawning is suppressed by a cool pack strapped to the forehead or by summer temperatures that are higher then body temperature, and that therefore the purpose of yawning may be to cool the brain by inhaling air.

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My A2B Hybrid 24 looked cool, despite the lithium battery pack hanging above its rear wheel.

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He crossed the stream, picked a double handful, washed the muddy roots clean in the current and then sat down again beside his pack and ate the clean, cool green leaves and the crisp, peppery-tasting stalks.

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"Now that Service Pack 4 for NT 4.0 has shipped with a lot of cool stuff, NT 4.0 is a solid product with an impressive installed rate, " he added.

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