Yeah, we had a lot of construction debris once, and rented a 30 cubic-yard dumpster (one of the big ones). After we tossed what we had, we told the neighbors to bring all they wanted. It was really helpful, especially since there were definitely a few that were down on their luck.

It was an awesome way to build good-will, since the price difference between a 10 and 30 cu.yd dumpster was ~10%. Obviously most of the cost is in the truck roll.

We also did the opposite once: we were demolishing a small vacation home, so we told some of the locals to pick through and take what they wanted. It was funny seeing our kitchen.. but in a different house.