When the Santa Ana winds come roaring down the canyons in October, Rancho Cucamonga gets swept whether it likes it or not — palm fronds in the street, leaves banked against every fence. DJ's Greensweep Landscape Services does lawn care and cleanup for Rancho Cucamonga yards, and the morning after a big wind is when that name earns its keep. Old Route 66 still runs through town as Foothill Boulevard, across land whose vineyards once made Cucamonga a wine country, and the houses along these streets deserve to look the part. A lawn cleared of debris, mowed even and edged crisp along the walk turns a wind-tossed lot back into something to be proud of. The before-and-after is the pleasure of it: a mess at dawn, a composed yard by afternoon.