One of the most common problems that people have who hit the ball off the toe of the club is that they change their posture during the swing. They will either pull away from the ball on the backswing and when the come back in they can not catch it solid, or during the downswing they will straighten up and then catch the ball off the toe of the club. So it is either straighten up on the backswing or while you are making your swing and coming down you pull away from the ball when you hit it. Both of these things will cause you to hit the ball off the toe. The key is to try and maintain the same posture all the way through the swing. So as you go back to the top of the swing you have the same amount of band as you did at address. At impact, the most important point, and even in to the follow-through, if you can keep the posture the same way you will really increase your chances at solid contact. A good drill to do that is to practice only making half swings, really working hard on maintaining the same angle of posture both on the backswing and the follow-through. Let me demonstrate; just a half swing back and through, keeping the same posture. That is how to make solid contact and not hit the ball off the toe of the club.