A nice way to accomplish this is to focus on keeping your balance at the end of your swing.  Imagine that someone is waiting to take a photo of your finish position, which will appear on the front cover of a golf magazine.  Hold that pose for a few seconds.

Chances are you'll swing with better rhythm and develop better timing, which will bring better ball striking and more power.  Ever tried to lay up short of a hazard with a smooth swing and hit it further than you thought. That's no coincidence.