You might have actually doubled your money by then, but the market could be down and you might have to leave your money in for several more years until things turn around.

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The accepted practice today is to leave your own mark on the art by drawing on the cars.

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The stage adaptation will use songs from the film's soundtrack, which memorably included You Sexy Thing by Hot Chocolate and Tom Jones' You Can Leave Your Hat On.

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You could leave your friends personal notes or restaurant reviews by dropping message chips that come alive when your friends' sensors come into range.

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But unlike most other national holidays, hosting a party for this one could leave you getting sued by the NFL or even your friends.

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To leave your front door was to risk getting bludgeoned by an ogre, harassed by a dragon or transformed into something rather unsavoury by a witch.

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It helps you keep tabs on your valuables (up to 5 items) by beeping each when you leave them behind.

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By contrast, if you leave the same stock to the same person in your will, the recipient gets a stepped-up basis to the value as of your date of death, saving capital gains tax.

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Finally, before you leave, make sure that your exit strategy has been worked out with and approved by your new employer.

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What would happen if you happened to leave your iPhone in a cab and a less than ethical person decided to buy up a storm by pushing that digital identification button?

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