I've already talked about Castiel's 107 secret techinques (uhm... maybe not.)...
Of course, the majority of them has to remain secret, I mean, this is a public page, Lucifer could be watching....I'm sure Eric Kripke will show you the rest by the end of series 5, but the world's not ready yet.
#42 is a reference to another comic of mine :'P --> [link]
(again, the shading on non-chibi Cas' face was lost T_T the original is much better...sigh I can't use the scanner....)
EDIT: Thanks to the lovely ~GeneJean
, we now have a Chinese translation!!!
You'll find it here: [link]