I never get Jetlag, I don't do anything special other than if my flight arrives in the morning I won't go to bed until the normal bed time of whatever time zone I'm in. Makes for a long day especially when arriving in MEL at 10AM, but seems to help me adjust quickly.

On the way back to NA its always been a day flight for me, so I never have trouble getting to bed back at home. By the next day I'm usually feeling pretty good..