Torpark

Wow, this is big. I don't use Tor cause its pretty slow and I am not particularly worried about what I do online. But this is really cool. You can download the application to a USB key and use it where ever you go to get online.

From the site:

"Torpark is a fully configured combination of Tor (The Onion Router) and Mozilla's browser technologies, enabled by John T. Haller's Portable Firefox. As of v1.5, the whole package is wrapped up in a nice single executable with file directory. No installation, no registry keys, no files left behind."