I have recently started using Tor for improved security and privacy when working out of certain locations. Not that I have much to hide but I do not want someone watching all my outgoing network traffic. Tor is also helpful if you are using a computer somewhere where they block ports (thus blocking services such as IM). I also started using Privoxy too with Tor to make my network connections even more private. If you are all curious about security and privacy, check out Tor and Privoxy.