When your outdoor cushions aren’t being used, pack them away. Otherwise, after storms simply wipe them dry and you should be OK. If you think moisture has seeped inside any seams, “unzip the cover and stand the cushion upright with the open side down to speed drying,” Hoff suggests. If a stain shows up, treat it ASAP. Beyond that, an occasional shaking out and cleaning with warm, soapy water should suffice. —Marie Proeller Hueston