It seems as though the new uses for coffee grounds are endless. This latest idea comes from Lifehacker and Yahoo! Green. If you purchase a used car that was owned by a smoker, fill the ashtray with coffee grounds to help absorb the smoky smell.

We’ve also got a few favorite uses for coffee and coffee grounds, including staining wood, fertilizing plants, and as a body scrub.

What’s your favorite new use for coffee?