I don't know about your neighborhood but where I live, Friday is trash day. The sidewalks are lined with trash cans and recycling boxes. Somethings are too big to fit in receptacles, so they are neatly stacked wherever will fit.
Little is wasted. The can and bottle collectors make thier early morning rounds, scooping up whatever deposits they can find. Before the garbage trucks arrive, men in pickups and vans make loop through the nieghborhood, scoping out the scenery, searching for anything with potential resale value.
Lumber and fixtures get removed before the paid garbage men arrive. So does furniture, tools, mirrors, picture frames, clothing. By late morning all that's left are things with no future use, things that really are ready to be discarded.