Shine wooden furniture and floors. If your wooden dresser or dinner table—or even your hardwood floors—are looking a little dull, give them a good cleaning and polishing with weak black tea. The tannins cut through grime and gunk to restore the wood’s healthy glow. Just boil used tea bags in water and let the liquid cool. Then, for wooden furniture, soak a cloth in the solution, wring it out and wipe every surface. For floors, pour the tea into a bucket, stick your mop in it and swirl from wall to wall.