Jewelry: Generally you don’t need to clean jewelry unless you see dirt spots, tarnish, or dust. But if you notice earrings getting a little funky, clean posts and backs with a cotton ball dipped in rubbing alcohol. Diamond ring looking dingy? Soak it for 20 minutes in a solution of 1 cup warm water and ¼ cup ammonia, then swirl it around in another bowl of warm water and a few drops of dishwashing liquid; scrub gently with a clean soft toothbrush, rinse with fresh warm water, and air-dry. If your pearls are dusty, rub each gently with a cotton cloth dipped (not soaked) in a solution of 1 cup warm water and a drop of mild dishwashing liquid. (Don’t submerge pearls—the string could stretch.) Let dry. To remove tarnish from a silver piece, wipe with a silver-polishing cloth.