What exactly is it that I'm supposed to do?
Sure, I use SSL when it is available, I use AdBlock et al., I stay off of the social networking sites, but c'mon: What exactly is it that I'm supposed to do? If the government wants to snoop on me then it will. There's really nothing I can do about it.
"Use SSL!" Great idea. Let's all use SSL. Except the NSA has the resources, reportedly, to break TLS / SSL. So... Back to zero once more.
"Use Tor!" Sure. Okay. Aside from the fact that it is slow, there have been plenty of articles here about how it's possible to track individual users on Tor - using the resources of a university computer lab. What do you think the government can do?
Basically, we're boned. These technologies are great against your neighbor next door or the 1337x0r h4x0r in the next country, but when it comes to the resources at the government's disposal, there's really very little you can do on the Internet, if anything at all, that can be kept private.