I've mainly just been learning the language. Working through some tutorials, reading books/articles, coding, etc. Did a few Project Euler problems, and now I'm working through SICP.
I burned a lot of time looking for my (not "the") perfect language, and finally settled on Racket for the dynamic language and OCaml for the statically typed language.
Now I'm trying see which problems are best suited to each of them.
Clojure has a lot of good things, but I've never been able to get past the dependency on the JVM, lack of tail calls, etc., but it's pretty darn concise.