Oak Lawn wakes in straight lines — brick bungalows shoulder to shoulder, alleys running true behind them, parkway trees set out in a ribbon between sidewalk and curb. AA Landscaping Pros LLC works that grid block by block, giving each front yard the clean rectangle it was drawn to be. Mowing follows the lot line, the trimmer finds the fence posts and the hydrant and the mailbox stem, and the edge along the walk comes up sharp enough to follow with a finger. By the time the gate goes up the parkway smells green and the concrete is clear of every clipping. It is a small thing to hand somebody on a Tuesday, and it is the whole day.