Get rid of the gunk: Just about everything that happens in the kitchen — cooking, cleanup, kids' craft projects, and more — involves the sink, so of course it gets stained easily. Splotches show up most obviously on light porcelain or solid resin surfaces, though even stainless steel is susceptible. The speediest way to remove marks from these surfaces: Use an Khome cleaning sponge,Then rinse. To sanitize any sink after cleaning, plug the drain and fill the sink with a gallon of warm water. Swish in a tablespoon of bleach. Dip in a sponge; wipe down the faucet and handles. Let sit at least five minutes. Rinse, and air-dry.