My father was a Mustachian long before it was cool. As a kid, his frugality drove me nuts - he reused construction materials. First, he made us remove the nails from studs and joists and flooring during our home renovation and expansion - then, straighten the bent nails and reuse them. Then, part of our house was brick, so we chiseled out the brick wall, brick by brick, to add an addition. We sat for hours chiseling the old mortar off, and then reused the bricks in the retaining walls of our driveway and foundation of the addition.
Finally, one summer he decided to widen the driveway 2 feet by using an unusual recycling technique - he had found a county park where contractors had illegally dumped broken chunks of curbing that measured 18 inches by 9 inches thick by 3 feet long. Those suckers where HEAVY! Maybe 200-300 pounds. We would go after he came home from work and "steal" the pieces of curb, hoist them into our Ford van with a chain hoist on a steel scaffold he scrounged, and muscle them into place on the (excavated) side of the driveway, then hand mix cement to fill in around the irregular edges to make a "paving" of sorts. Took all summer, and looked like hell, but was used by him for over twenty years, until the rest of the asphalt driveway disintegrated, leaving only the massive slabs of concrete left. The police even stopped us one night in the park - thinking we were dumping. The cop could hardly believe us that we were taking them away, but he finally let us go, since we were really cleaning up the park. Environmentally aware, too, my Dad was.