Midnight in Olneyville, and the mill windows along the Woonasquatucket are throwing back the streetlights while the snow comes down sideways. Cris Landscaping LLC is out in it — plow blade down, working the neighborhood's lots and driveways block by block, shoveling the walks and treating the ice that sets up where the river fog settles. Wet Rhode Island snow is heavy work; it packs, then freezes, then argues with you. The trick is passes — early, often, and once more before morning. When the first cars pull out onto Manton Avenue and nobody has to think about it, the night has done its job.