How should Clojure applications be structured?

Random thought from #clojure irc last night:

Clojure disposes of so much of the ceremony that exists in most programming languages and is so "data-oriented" that the structure of Clojure applications seems to represent the contours one's domain far more than any other language I've encountered. That is to say, outside of some probably very broad idioms, there's probably no such thing as a "typical structure" of Clojure programs.