Small flash of genius

I was wondering why I can never manage to write a private blog and keep the work stuff out, or write a blog that is more technical but doesn't have the tendency to turn into a diary. Part of it is that I don't have a specialized area for which I would be able to gather enough info to post regularly. There's more though...
Took me pretty long (duh) to work this out, but well, I can be slow at times ;).
So here's the revelation: When I work, I want it to be something that I can be passionate about. There is no way I can keep anything with passion out of my private life or vice versa.
So I guess it's that simple - I blog about things I'm passionate about - forget the other categories.