Natural Kitchen Sink Stain Remover

If a porcelain kitchen sink  or bathroom sink becomes scuffed or stained, try an herbal bath. Steep several bunches of rosemary or thyme in hot water for a few hours, then strain. Stop up the sink, pour mixture in, and let it sit overnight. 

Also try, 1/2 cup white vinegar and 1/4 cup baking soda to a 1 gallon bucket of water. Use this solution with a scouring pad to clean scuffs and stains off gently without the use of harsh chemicals.