We stay at home, due to all the lunatics that are out on the road...however, we can sit on the roof and watch giant displays from Disneyland, Knott's Berry Farm, and about a 1/2 dozen other places all at once.
The downside to this is that the majority of fireworks are sent up by residents with (here) illegal rockets, etc...not to mention the occasional 9mm or 30/06 round shot into the air by fools...S