## Multi-window, multi-terminal split
Two terminal windows open, one with a bunch of long running watch tasks, the other with an editor.  Each of the terminals is a view into one of two windows in a tmux session.  Useful for having a vertically split screen with editor on right, and switching between a browser and other command windows on the left.

In first terminal:
* `tmux new-session -s first`
* `tmux rename-window editor`
* `emacs` or whatever

In second terminal:
* `tmux new-session -t first -s second`
* `tmux new-window -n commands`
* `lein ring server` etc