PortaPutty

Putty is a Windows program that allows you to telnet and ssh. Pretty much one of the best open-source items out there for ssh. PortaPutty takes it one step further and is hacked to be used off of a USB drive. So you can take it with you, and not be afraid that someone’s stupid machine doesn’t allow you to install your favorite SSH client.
Jealous? You should be. But you too can be Im-porta-nt, with PortaPutty!
Via SocialistSushi