Those executives who can't afford one should try keeping a diary, or a dog.

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Mitch Rubin, fresh at his first job as a Baron Capital equity analyst, began keeping a diary to track each trade.

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As well as helping mothers care for babies and keeping a diary of their progress, the Dutch nurses help with chores such as cleaning and laundry, make sure older children are properly fed and ensure mothers' rest is not interrupted by too many visitors.

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Keeping a spending diary for a week and getting the whole family involved has got us all talking about other issues too.

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Vikki is keeping a web diary of her operation and hospital stay for BBC News Online.

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There are references to favourite parables from the New Testament, and advice on keeping a tightly controlled diary as well as ensuring access to quality bathrooms (because constant jet travel plays havoc with the bowels).

ECONOMIST: Bagehot