September is the sweet spot in Fort Collins — nights cool enough to fix the grass, days warm enough to enjoy it, the elms around the university Oval just beginning to consider turning. Joel's Lawn Care, Inc. spends that stretch mowing, edging and cleaning up the old Laurel-neighborhood yards where the trees are big and the lots are small. When the season tips, the trailer gives way to a plow and those same addresses get their drives and sidewalks cut open after a storm. A crisp edge in autumn and a clear walk in February are the same act of attention paid with different tools. Neighbors notice both, even when they don't say so.