Gotta love those great old ads. If you saved up your paper route money, you could send away for this 12-in-1 Muscle Building outfit which contained a wall exerciser, high tension hand grips, head strap, cable set, foot attachment, a jump rope, rowing machine, wall charts, jui-jitsu course, and some other educational material. Though perhaps crude by today’s standards, such a rig certainly provided a large number of training options.