Summarize this article in one sentence.
Wear heavy duty clothing, gloves and eye protection as you never know what you will encounter. Many construction companies use the city dumps to dispose of material that they can't use or that they feel is not worth reclaiming. But you won't have the labor costs involved to strip paint from old windows and doors or to remove nails from lumber that the company would have, so it could be a great find for you.

Summary:
Visit your community dump if they allow it.