I ran a seperate circuit down the center of my shop between the work bays and dropped 2 12-3 SO cords with female plugs on the ends every 6 feet 6'4" off the floor, that saves me countless steps and the mess of extensions cords laying all over the floor. Don't know about you guys but if I got an air line and a couple of extensions cords on the floor they will be a tangeled mess before the project is done. Thinking about running a air line right beside the electric line.