Really cheap hairspray removes ballpoint ink from plastic because it has a high amount of acetone.
Baking soda is a nonabrasive cleanser. Use it without worry on fine china, porcelain appliances, the inside of the refrigerator, stainless steel, aluminum, and cast iron. You can use it either in its powdered form or mix it with water to make a paste. Baking soda is a wonderful cleaner for everything from countertops to rolling pins to gold-trimmed dishes. And, if you want to remove an offensive odor, think baking soda.