Cam clamps are a simple and inexpensive alternative to traditional clamps that take less time to use. They can be easily built at home from wood stock and hardware. The document provides instructions for building cam clamps, including a list of materials needed and step-by-step directions for cutting the pieces, drilling holes, assembling the cam and jaws, and finishing touches like adding cork. With just an evening's work, someone can construct a dozen cam clamps that can exert 200-300 pounds of pressure with just a flick of the wrist.