I moved into a home where the people had a cat and dog. The carpet stunk
and at closing I insisted on money for new carpet. But then I read on a
newsgroup about a product called Nature's Miracle - sold at pet stores.
I bought a gallon for $20 - and used it with my carpet shampooer. It
cleaned up the odor and got rid of the dirt too. I can put off buying
that carpet for a couple years now. Any pet store has this product or a
similar one.