Washing your car in drought-ridden California can earn you a $500 fine these days, since the process typically requires so much water as to be deemed wasteful. Fortunately, a Massachusetts-based software engineer has invented a device that makes it possible to polish your vehicle with merely 1.5 gallon of water. He was inspired by the water filter in his fish tank. It is exciting to see how necessity spurs innovation.
How to keep your car shiny clean in water-deprived California
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