On a June evening in Grand Blanc Charter Township the cul-de-sacs off Hill Road all smell alike — cut grass, warm asphalt, somebody's grill. L&T Lawn Care LLC. is part of that, moving lot to lot with mowing, trimming and edging, clippings blown from the walks before the truck pulls away. The lawns here run flat and open, which forgives nothing: every line shows, so every line gets straightened. Spring and fall cleanups bookend the mowing weeks. Neat, on time, and finished properly is the entire ambition.