Wet and dry vac with some cleaning detergent can work wonders on your cars carpets, here is an example from a rental car

It amazed me, and I did the cleaning... but if your car's carpets are making you wince, try something like watered down 409 and a scrub brush, then wet vac it dry.
Source URL: http://automotivetrendnews.blogspot.com/2010/10/wet-and-dry-vac-with-some-cleaning.html
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