On: A minimalist guide to tmux

[empthought]

C-a is a non-starter for people who use Emacs/OS X key bindings for move-beginning-of-line.

[simtel20 → empthought]

C-b is pretty bad for the same reason for users like me with with well-worn emacs key memory. I end up using the backtick, but it does make sharing a session that little bit more difficult.

[u801e → empthought]

I'm not sure about tmux, but you can still move to the beginning of the line by pressing C-a a in screen.

[drunner → empthought]

adding

  bind C-a send-prefix  

to your .tmux.conf file will allow you to type C-a twice and still get to the front of the line