Buying different blankets for different seasons is a hassle — an expensive hassle. We think you’ll get the most mileage out of a fleece blanket with a water-resistant polyester backing. In the summer, you can place the fleece side down on the grass and sit on the smooth side at concerts and picnics. When fall football rolls around, huddle under the fleece while the polyester keeps out any water or wind. Of course, you’ll need to carefully remove any twigs or grass that get caught in the fleece. Either pick them off or use a stiff, bristly brush to flush out the debris. Most dirt should come out in the wash, so look for a blanket that can handle the washing machine.