Yep - Portland, Seattle, and Vancouver BC all fit into this "don't need a car, just take the subway or walk" camp. According to a friend that lives there, Bellingham "almost kinda counts" for this category, too, but I haven't been to confirm/deny.
There's cases where Car2Go/etc. are useful out this way, but generally I don't use a car often (having lived in Seattle and Vancouver BC since coming to the PNW).
Edit: I should clarify. You can't just plop down anywhere - if you live up at the top of Queen Anne Hill in Seattle, you're gonna have a rougher commute to downtown than someone who lives in, say, Columbia City near the light rail line. Much like Chicago or NYC, your proximity to high-frequency transit corridors will greatly decrease your stress levels.