Well, we know that it's now 2010, so a list of things to do before 2010 may seem a little out of date, but this is a list of things you should probably do anyway:
8 Things Every Geek Needs to Do Before 2010
And, no, you don't actually have to be a geek to do these things, you just have to be online.
Now, some of them might not be relevant to you, but take a look at the list and see if there's something that does apply to your digital life.
Do you have a Facebook account (or similar)? What about an RSS feed reader? Or a blog?
The writers of this list make a comment about your public online identity. Potential employers often try to look up their applicants online, so it's worth making sure your online presence looks good.
And as for backing up your data and protecting your passwords? Always a good idea.