Snow on the Main Street cobbles fills every seam first, and for an hour the whole street looks like one smooth white floor. Tom Hanlon Landscaping handles Nantucket snow removal — plowing driveways, clearing walks and steps, putting down sand and salt, and pushing back the banks when a storm doubles up. Up past the Rotary the wind gets a running start and drops its load in the same three places every time. Knowing those places is half the work; the other half is getting there before the town starts moving. There is real pride in a driveway squared off to the pavement while the sky is still throwing flakes.