Another handy trick: put this script on your path somewhere, and name it "ssh-argv0":

    #!/bin/sh
    exec ssh "${0##*/}" "$@"

Then create symlinks to ssh-argv0 for common hostnames you ssh to, shortened using host aliases as suggested in the article. You now have a command for each host, which you can use as a prefix like sudo to run a single command on that host. For instance, "myth sudo reboot".

If you're used to using "ssh user@box foo", and not always for the same user (in which case you could use "User" in .ssh/config), you can do the same thing via "box -l user foo"