PuTTY Tray is an improved version of PuTTY. It features some cosmetic changes, and a number of addons to make it more useful and much more fun to use.
The features that I really like:
- Minimizing to the system tray
- Portability: optionally stores session configuration in files (for example: on a USB drive) like portaPuTTY
- Reconnects when your PC wakes up from stand-by / Attempts to reconnect when the connection fails