 She also would clean the refrigerator coils as part of spring cleaning. Some refrigerators don't have these. They're not very accessible, but you would be surprised if you could take your shop vac and switch the hose around so it's blowing air out rather than sucking it in. And if you go under the refrigerator and blow a bunch of air under there, I mean, you'll have things the size of rabbits coming out of dust balls rolling across the floor and all that. But that means the refrigerator doesn't have to work so hard.