From Craig's List, your basement, and estate sales, you can salvage what you need to upcycle all kinds of cool things. You can build tables, install vintage hardwood floors and salvaged windows, mason reclaimed stone walls, and do much more using free or very inexpensive, high-quality, reconditioned materials.
You'll encounter opportunities to upcycle usable building materials everywhere. By using Building with Secondhand Stuff, 2nd edition, good judgment, and a few salvage tricks, you can take advantage of these chances to gather free (or nearly free) project supplies and put them to work in your house.

This second edition of the best-selling book includes new projects such as a pallet chair, pallet table, chalkboard message door, door-backed island, and a reclaimed window greenhouse.