It encourages cities and individuals to switch off non-essential lights for an hour at 20:30 local time.

BBC: Sydney dims down for Earth Hour climate change protest

Canned or dried food keeps well, but switch out non-perishable food about every six months to keep your disaster kit fresh.

CNN: Food Central - Y2K supplies: A preparedness checklist - December 9 , 1999

Will non-Pepsi drinkers switch from a competing product because of the commercial?

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The British cars were equipped with standard headlamps - but the only way of dipping them was to switch to non-standard fog lamps.

BBC: 1966: Future of Monte Carlo rally in doubt

So the new pricing policy strikes me as a non-story, and the decision to switch a no-brainer.

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If it turns out to be a non-resistant strain, you can then switch to the cheaper vancomycin.

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With the infrastructure UPS already has in place, it wouldn't make sense to switch to Oracle databases in a non-NT environment, he said.

CNN: Users wary of Oracle lightweight OS idea

Lobbying secured an offer to switch Brazil's export-financing effort towards non-Mercosur markets.

ECONOMIST: Brazil rocks the Mercosur boat

Cut development expenses to zero, switch to dated but cheap technology, under-depreciate, change pension fund assumptions, bleed non-executive salaries and defer benefits etc.

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