[msla]

For people who aren't being sarcastic: tmux is great. It even allows you to ssh into your machine, do `tmux attach` at the command prompt, and get all your terminal programs right there, from anywhere in the world.

And when you're done with the ssh session, detach and log out, and everything stays running.

[bclemens]

Some terminals (like urxvt) also support running as a daemon and spawning a new window just attaches to that terminal daemon. Faster and it saves you a megabyte or two over actually opening a whole new terminal.