Hot Rod Tips & TechThese Shop Rags are Expansive. Posted on May 18, 2012January 30, 2020 by Steve Carpenter 18 May I constantly pick up the free cars-for-sale shoppers from the gas station. I pull the two staples out of the spine, drape the pages over a clothes hanger and have an unlimited supply of free shop rags. The pages work well for soaking up oil. Steve Carpenter My Throttle Cables Sticks. Never Buy Shop Vac. Filters Again!