During that brief window both Gingrich and Bill Clinton had unusual incentives to cooperate with one another.

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So under Congress's 10-year budget window, the House bill is able to pay for seven years of spending with nine years of taxes.

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Step up to the window and you see Bill Gross next to you fingering a few big bills from his money clip and betting on the municipal ponies.

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Earlier this month, the Premier League granted Portsmouth permission to sell players outside the transfer window in order to reduce their wage bill.

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But he can minimize his estate's potential bill during that ten-year window by using some of the same techniques wealthy U.S. citizens use, such as family limited partnerships.

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For a start, you can see a real need being met - who hasn't been part of that scrabbling around for cash when you sort out a restaurant bill or try to pay a window cleaner?

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Another touchy cost issue: If a financial advisor charges you a percentage of assets under management, he might bill you more for advising on your 401(k) if you use a window.

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