Best coffee shop I've been to in downtown Seattle so far. Madagascar vanilla latte is a must! Cappuccino bread is tasty too. And the baristas/staff are very friendly!
Get a shoeshine by Dave Blanks-- he gives an incredible shoeshine with the care and attention you expect, for only $4. Clean shoes are a must in the business world. Plus, the man is a great mentor.
If you promise to play entire songs (and not just practice), you can ask the staff's permission to play the piano. They usually turn down the competing music for you.