Double Survey

So, I've been wondering about a couple things and am just looking for some outside opinions.
First, I've been thinking a lot about the privacy thing and the internet. This blog isn't password protected, but it isn't on the blogger searchable list or whatever it's called either so only people who I give it to can find it as far as I can tell. Hence my first question.

How careful are you about what you put on your blog ie identifying information? Why do you feel the way you do about whatever your idea of a "safe" amount of information is?

Second is a Christmas based question. I am curious how you keep things "equal" with your kids presents. Do you do a certain amount of money? If so, what is reasonable?? Or do you do a certain number of actual gifts? If you get one kid a movie do you get the others one too? etc...I think I'm extra careful about 'fairness' since I have twins and probably do more of buying a movie for both or whatever just to keep the peace. What do you do that works? How much is too much at Christmas? Okay, I know there's a lot more than one question here, but humor me and answer them anyway. ;)

Happy holidays!