Eye on the Ball
Keeping your eye on the ball is advice you get when learning to play golf, tennis, baseball, football and even basketball. In hockey, they say puck. The key in golf, though, is what part of the ball to focus your eyes on. Most people look at the top of the ball. They would be better served to look at the back at the exact spot where the club will strike it.
Head Behind the Ball
This is another idea that gets promoted by pros. But from a practical perspective, what does it mean? Your head will naturally slide behind the ball during your back swing. But let it slide forward during your down swing and follow-through, and you will be in trouble. Make sure you rotate around your body as you swing. This generates the most power and allows you to stay balanced.
Hit Down to Go Up
Golf is the most counter-intuitive sport on earth in this respect. But the truth of physics is that when you hit down on the ball with your lofted club, the ball will strike the club, ride up the club face and rise into the air in front of you. If you attempt to hit the ball on the upswing, it will not utilize the club face and aerodynamic grooves at all and actually fly on a lower line than you think.
One of the most important aspects of a golf swing in maintaining clubhead speed and power is balance. Keeping your weight evenly balanced between your feet allows you to swing around your body and finish your swing in a high follow-through with power. The moment you start losing your balance is the moment you start leaking power out of your swing.
Scoring Red Zone
Practice. Practice. Practice. Work on your shots inside of 100 yards to learn how to score well when you tee it up against your friends. Asked late in his career what he would have done differently, Sam Snead replied that he would have practiced only driving the ball and shots inside 100 yards. Given the modern game's "bomb and gouge" mentality, ol' Sam wasn't far off.