Took a drive out to Mt. Rainier National Park yesterday. I can't describe how absolutely beautiful this place is, so here's a link to some photos:
Needless to say, you should go. The Park Service even has annual passes good at all National Parks for $80 per passenger vehicle. And there is a volunteer program for those wanting to spend more quality time on the trails and lend a hand in keeping these magical places preserved for generations to come.