I borrowed this idea from Don, who has done this for several years. Below are all of the cities where I have spent at least 24 consecutive hours in 2008.
Seattle, WA (home)
Cannon Beach, OR
Salt Lake City, UT: May, July, November
Port Orchard, WA
Lake Wenatchee, WA (Telma, nearest city)
San Francisco, CA
Here is hoping that 2009 brings some more exotic ports of call.
UPDATE: Forgot to add SeaTac, WA to the list. Also you can check out Kat's list here.