De-Clutter Your Bed
We love an array of perfectly coordinated throw pillows as much as anyone, but the more bedding on your bed, the more places that can harbor dust mites, one of the most common indoor allergens, says Sandra Hong
, M.D., a staff allergist at the Cleveland Clinic. (The microscopic bugs leave behind droppings, which is what people are actually allergic to. SO gross). Keep your bedding minimal, and be sure to wash all of it weekly.