"Free Wood"

I'm usually not one to sort through other people's stuff to find treasures in places like thrift stores, garage sales, or discards on the side of the road.  (It's not that I don't want to be economical, but the time it takes to find gems is more than my shopping-averse attention span can handle.)  However, I could not resist the “Free Wood” sign on the construction project a few houses down from mine.  Was it the plea to release something natural back into the wild that got my attention?  Perhaps it was the chance to use my Radio Flyer Wagon.  In any event, three full wagons later, my garage now has a pile of scrap wood.  The possibilities contained in this pile are as of yet unknown.  Sadly I don’t think anything will be rehabilitated into the forest, but it is nice to get something for my pains of listening to the torturous carpentry racket all summer.  Anyone want to build a tree-house?