Thomas' Liquid Stainless Steel can be used on appliances, faucets and countertops. The water-based resin is stainless steel in liquid form, and it provides a brushed-stainless look that is as durable as an automotive-grade finish.
Kleen-Screen™ Air Conditioner Coil Filter -- improve energy efficiency; protect A/C unit from 95% of most debris that can clog your air conditioner condensor. Easy one-person installation. Dust to clean. About $30.00.