Scott Mautz ran several of Procter & Gamble’s multi-billion dollar businesses, so he is obviously an effective leader. Scott now hosts free leadership classes on LinkedIn that have attracted more than two million registrants. He teaches people to work out daily. But no sit-ups, pull-ups, bench presses, or squats. Scott believes in rigorous mental workouts to increase your boldness, fortify your fortitude, and build your decision-making muscles. He has developed 50 different “mental strength” exercises, so after just one session, Roving reporter Rotbart now has Schwarzenegger-style mental muscles. Ready for a workout?