Perhaps my east-coast, hurry-up mentality is a bit much for the public transit of Seattle, but I feel there is one common courtesy of Washington, DC (perhaps the only common courtesy I noticed in my 3 years living in the Northern Virginia area) and that pertains to escalators. Anyone who has ridden on the DC Metro system knows exactly where I am going with this, one word, ESCALEFTER!
Are you an escalefter? It’s a real word, I know it is because I’ve seen the definition largely posted in any DC Metro train. An escalefter is “person who stands on the left side of the escalator when he should be standing on the right”.
Apparently this amazing rule of thumb for navigating transit tunnel escalators has not made it to the West Coast.