After a round of golf while socializing in the '19th Hole', you will always hear "I hit the ball well but didn't score." The object of the game of golf is to score the lowest possible score you can. How you can hit the ball well and not score can be summed up in two words: course management. You can ruin a good round by trying to pull off that one in a million shot and making a triple bogey. After hitting a shot into trouble you are almost always better off to take a safe route out and play for a bogey.
When does course management start? Some players will tell you it starts after they have to make a decision on the course. Nothing could be further from the truth. Course Management starts before you tee off on the first hole. You should always have a plan for the round you are playing and more importantly you should always have a plan and a target for each and every shot.