I see far too many golfers wailing away at golf balls on the range and aimlessly putting on the practice green. They are getting nothing accomplished other that working up a sweat. Make sure that you are practicing with some sort of objective or plan. Luke Donald sets up piles of balls before his round with a specific number of balls in each pile designated for a particular club and target. You don't have to be that specific but it seems to be working for Luke. Make sure you know WHY you are going to the range. Simply going to the range to try and figure it out on your own rarely works. If you need help with your practice plan give me a call and I can help. Taking instruction helps as well because the pro will tell you what and how to practice and the most efficient way to do it.