Oak Forest earned its name honestly — bur oaks that stood here long before the subdivisions did, throwing shade across yards that have to be worked around them. Obriens Landscaping handles that kind of ground in Bremen Township: mowing, trimming, shrub and hedge work, mulch, and the cleanups a wooded lot always demands. Shade grass is a problem of its own, and so is a hedge that has quietly grown a foot wider than anybody intended. Bringing both back into line is the good part of the day. A shaded yard, kept, is the coolest place to stand on a south-suburban afternoon.