By mid-afternoon a thunderhead is usually stacking up over the pines somewhere west of North Twiggs, and the mowing gets finished ahead of it. AB Lawn and Landscaping keeps yards along the county roads out here, where red clay shoulders run right up to somebody's front lawn. There is real satisfaction in that last pass before the rain arrives: the lines laid straight, the drive blown clean, the trimmer run close along the mailbox post. Toward the Ocmulgee bottoms the grass grows like it means it, and staying ahead of it is most of the job. This is lawn care measured in tidy afternoons, one property at a time.