Focused warmup is essential for peak performance in golf. If you attend any professional sporting event you always see athletes going through a pre-game warmup, and in golf it's no different.
Most amateurs, however, get "warmed up" by dashing from their cars to the pro shop to check in, then cruising down to the first tee. Usually this is followed by unsteady play for the first five holes and ends up with another disappointing round. If this isn't your vision of a great game then I recommend the following routine: