I have the Caps Lock key mapped to Control (for Unixy things, especially Emacs), and the Control key mapped to Escape -- which, incidentally, improves locality

I have the Caps Lock key mapped to Control (for Unixy things, especially Emacs), and the Control key mapped to Escape -- which, incidentally, improves locality of the Force Quit key combination. I never use Caps Lock anyway. ¯\_(ツ)_/¯