There is an hour at dusk in Ypsilanti — the lights coming on around Recreation Park, the air cooling fast — when you can tell what the next day is going to ask of you. Sentinel Lawn Care keeps watch on both halves of the calendar, mowing, trimming, edging and cleaning up yards while things grow, then plowing, clearing walks and salting once the forecast turns. Watching is most of it: knowing which lawns are outrunning the schedule, which drives fill in first, which corner of a lot glazes before the rest. Acting on that before anyone has to ask is the craft. What the property owner sees is simply a place that is always already handled.