First Things First!

When you start going to the driving range, at lot will be going inside your head - get the grip right, get the back swing right, are my shoulders twisting, am I hitting the ball rather than taking a swing.

Well, get this all out of your head. First of all forget about how far the ball is going. That's not important at all. What's important in the beginning is getting the basics right, each time, every time!

First, the right grip. Although there are three different grips - overlapping, interlocking and baseball grip - I recommend the interlock grip where the little finger of the right hand is interlocked with the index finger of the left hand. This gives you the confidence to grip the club lightly (think of opening the cap of the toothpaste tube) without the fear that if you hold it lightly it will fly off your hands.

Next is to move your shoulders back as far as possible in the back swing so when you release the club forward, it carries the momentum of your entire upper body.
 
Third, follow the thumb rule - left elbow straight during back swing, both elbows straight as the club hits the ball and right elbow straight during the follow through (front swing).

Most important, a good posture. It is critical in making solid, repeatable contact and having a balanced, powerful swing. So the best posture is to set your feet approximately to your shoulder width apart, tilt forward from the pelvis (your butt a little out to put it straight!) and establishing a slight knee flex allowing your arms to hang straight down from your shoulders.

Great! See you at the driving range!