If there is such a thing as a typical Seattle café, this is it: casual and comfortably disheveled, nutritionally enlightened, and perfumed inside and out by the aroma of terrific coffee. Its ownership has changed a few times since it opened in 1978, but its character (and menu) remains familiar and eater-friendly. One new feature, for those who are in desperate need of a quick caffeine fix when there are no seats available inside (a likely situation on weekend mornings) is barista John Hornall’s coffee cart on the sidewalk outside. Seattle’s coffee cognoscenti know the latte from this particular cart as the city’s best.