My pro taught me to always set up the same way for each shot. Club behind the ball shaft straight. Step into the stance with the right foot instep lined up with the club face. Step into the stance with the left foot. Move the right foot shoulder width away from the left foot. Anyway, suffice it to say, there's many ways to skin a cat (who made up that saying anyway?).

Just find a routine that works and gets you set up correctly EVERY time. Then stick to it. It takes some experimentation. The benefits are confidence and consistency.