One of my grandfathers worked for thirty years for a manufacturer of household appliances, retiring with a gold watch, the house he bought in the 1950s, and some dividend-paying stock in a utility company.

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If you want to trade commodity currencies, the best way to use commodity prices in your trading is to always keep one eye on movements in the oil or gold market and the other eye on the currency market to watch how quickly it responds.

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Which leaves only Rolex, an unstoppable force that holds 25% of the high-end market with basically one watch, the Oyster, while keeping the company's inner workings almost completely hidden behind a gold-clad fortress in Geneva (see "As Tight as an Oyster").

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