If you're going to be in Seattle, take the Seattle Water Taxi from Pier 50 over to West Seattle's Alki Beach!
After you arrive either walk down Alki and explore the many great eating places or take a free shuttle up to the quaint city of West Seattle.
The cost of the Water Taxi is a real bargain at around 3 bucks and it's a great way to avoid driving and the hassle of finding parking!