Ken beat me to it, but you can alias SSH hosts, specify keys, usernames, ports, almost any command line parameters using the ~/.ssh/config file. See man ssh_config for details. 

I use it with some password-less ssh keys to allow me to move about my ssh hosts seamlessly. Not too safe I know..

I've also found it useful to add port forwarding to make an ssh proxy to my home network. All to evade my company's decency filters when necessary.. I mean to proxy from an insecure location.

Thanks for the interesting podcast.