Multilingual blogging?

A lot of stuff I'm tempted to write about is meaningless to people outside Germany, and it would be silly to blog in english about it. Other stuff however could be interesting to the rest of the world too (meaning one or two readers more...), so some stuff would better be in English.

I'm thinking about blogging stuff in German as well as in English, despite the confusion it might cause to readers (the few that are actually there - my blog is more a write-only medium, anyway).

Any comments?