Practice special shots before you need them.  For Example, try hitting soft pitches over a bunker with a 5-iron.  You never know when you might need to pull this one out of the bag.

One of the most popular practice drills is to swing the club with your feet together.  This drill encourages you to turn your body and swing your arms, and improves balance and timing.

The best way to deal with pressure on the golf course is to develop a repeating routine.  Even the best players tighten up down the stretch, but that's when they depend on the preshot routine they've developed over the years.

To appreciate the sense of hitting into a firm left side, turn your left foot in a few degrees at address.  This provides resistance in the hitting area and allows your hips to clear at a tremendous rate.  The result should be added distance.

To accentuate a strong pivot, turn your upper body and get your left knee behind the ball on the backswing.  On the downswing, swing your arms and hands and get your right knee to the ball at the same time as the club head.