It’s always a bummer when your beer goes flat before you get around to finishing it. But instead of dumping the extra liquid down the drain, why not try this repurposing idea from Reader’s Digest, which shows you how to use stale ale to clean wood furniture.

Simply pour the beverage onto a soft cloth. Then, wipe down the surface. Finally, dry the area with a new rag and the piece should shine. Networx also says this trick will help restore the color to lackluster items.

This tip is definitely worth a try because it’s a greener way to clean your home, plus it’s super convenient (if you have an extra brewsky). So next time you find yourself with a few leftovers, don’t toss them — put them to good use.