A polarimeter can determine the optical activity of an organic or inorganic compound by providing information about the optical rotation of plane-polarized light when transmitted through that compound. This "Journal" has reported various construction methods for polarimeters. We report a unique construction using a shoebox, recycled office supplies, and equipment commonly available in any academic science laboratory. The sample volume requirement is only 20 mL and the instrument and operation have been greatly simplified. This instrument was developed and successfully tested during a high school chemistry teachers' workshop. (Contains 1 table and 1 figure.)