How often do you clean the odd areas of your home, like the back of your refrigerator? We haven't clean ours sever since we installed our kitchen appliances, that was 6 years ago. As a result, the exhaust fan of the refrigerator was dirty and it was making a howling noise. Hubby cleaned it last weekend and now the howling stopped. Hubby scrubbed and sanitized this area after he pulled the frdige out. Yeah I know what you are thinking, it is filthy and I am glad that it is now cleaned. Who else of you cleaned the back of your refrigerator?