Lake Ontario is only a dozen miles north, and come January it sends its weather straight down over Perinton without asking first. Buse Property Maintenance LLC meets that in the dark — plowing driveways and lots, clearing walks, spreading salt so the morning finds bare pavement instead of glare ice. There is a stretch around three a.m. when the whole town is asleep and the only sound is a blade scraping and an amber light swinging slowly across a garage door. By the time headlights start moving on the main roads, the work has already happened and nobody has to think about it. Which is exactly the point of it.