The Borg Rating of Perceived Exertion (RPE) scale is a tool used to measure the intensity of exercise based on how hard you feel your body is working. It typically ranges from 6 to 20, where higher numbers indicate greater exertion. It's useful for gauging effort during workouts. Have you used the Borg scale before, or are you considering it for monitoring your exercise intensity? What kind of workouts do you usually do, and how do you assess your exertion levels now?