Winter arrives in Wappingers Falls as a sound before it is a sight — the scrape of a blade somewhere up All Angels Hill Road while the windows are still dark. AA Property Services works that hour, plowing driveways and lots so a car can back out clean at seven and a walkway can be crossed without anyone thinking about it. Storms come up this stretch of the valley crooked, wet one night and powder-fine the next, and each kind wants a different pass. There is a plain satisfaction in a drive opened all the way to the pavement, the apron salted, the banks pushed back far enough to hold whatever comes Thursday. By the time the village is awake, the work looks like nothing happened at all — which is exactly the point.