I'm mentioning this only because it make so much obvious sense, but I didn't think of it until now:

Rule: Don't post 'I'm going on vacation' on a blog.

You may as well say, 'Anyone who can figure out my address, come rob me.' As the Palin email password stink shows, it's frighteningly easy to put together someone's real life 'secrets' from just a few hours in front of a search engine.

And yes, I did it, too. That's why I'm saying this. I posted to Twitter "I just landed at SFO" and didn't think much about it until I saw an article or forum thread (forgot which) that said this. I'd give a proper attribution but I was rushing to find something for a friend. (To whomever it is out there, I owe you a karmic debt. Thank you!)

Anyhow, be careful out there.