In the middle of July, when we are designing a driveway, it is easy to suffer from "Winter Amnesia." We look at the beautiful pavers, the lush planting beds, and the elegant retaining walls, and we forget one massive, heavy reality: In six months, we are going to need a place to put 40 inches of snow. Most landscape designs fail in January. They box the homeowner in. They place walls too close to the edge, leaving no room for the plow blade. They create bottlenecks that trap