Courtesy of Distrowatch, I learned about Tails, a live Linux distribution based on Debian Live that uses Tor and other cryptographic- and privacy-minded features to protect a users anonymity while using the Internet.
I've been interested in projects like this for quite some time. I used a live CD based on OpenBSD called Anonym.OS to do this some time ago (more to see if OpenBSD would run on my hardware, but I did appreciate the security emphasis of Tor then and now).
No sooner did I hear about Tails than did I download it and write it to a bootable USB drive.
Now I'm in the Debian Live/Tails environment, using the Iceweasel browser with Tor and excited about the possibilities of using Tails to operate computers (plural) on the Web in a truly free and (mostly) traceless way.
It all should be like this but isn't, of course. The endgame for me is a fully installable distribution that adheres to these privacy principles.
I'll write more about Tails later. Until then, download it yourself and give it a try. It runs great (it's Debian under the hood after all) in case you were wondering.