Historic Preservationists' Secrets
"Mr. Kronenberger has restored everything from outhouses to covered bridges to the homes of Mark Twain, Harriet Beecher Stowe, Nathan Hale, and P.T. Barnum. He notes that many simple techniques from the past are still in use today, such as using a broken piece of glass to shave off the fine "fuzz" on wood after it has been sanded. Or using vinegar to make cheap wood look expensive."
Thanks to Chris Steins