Out where the expressway and the train lines run together on the Northwest Side, houses sit close to the road and the yards do their work in a narrow strip of quiet. Chicago Lawn Pros Inc. keeps those strips looking like somebody's home rather than somebody's stop — mowing, edging, trimming, seasonal cleanups, leaves moved off the parkway and the walk. Evening is a good hour for it, when the traffic noise softens and low sun rakes across a freshly cut yard and shows every line. The satisfaction is the contrast: engines out front, clean green behind the gate. It doesn't take much square footage to feel like relief.