To clean those dust bunnies underneath and on the side of the refrigerator, use your old nylons. Make a ball and attach it to a clothes hanger or a stick (use a rubber band). The dust will cling to the nylon. You can reuse it by throwing it in with your laundry. I tried this method since the vacuum attachment that we have is too thick to go under the fridge. It worked like a charm. It did picked up a lot of dust. Why don't you try it, who knows what you have under your fridge, you might even find an enrollment form for an online life insurance.