One Last Thing:

When you go to set the first club on the ground, stand behind it and pick out a target 4 feet in front of the clubhead that's on your target line, and point the club along a line parallel to that spot. You've likely heard the benefits of using an intermediate target, but most golfers pick one that's too close to the ball. Four feet gives you the right vector to nail this part of the drill. Use the four-foot mark when you're on the course, too.