Wow, thanks, everyone! I wasn't looking for things to do; I know the Seattle area well. But I've not been to the MOF; that sounds really interesting, and worth a little work to get to.
And I think I'll give Ken's Baggage a try. That seems most convenient and not too much $. But there were some interesting other suggestions. Good to know there are options.
Off to the airport soon!
Cheers,
Don