[groby_b]

There's always C-\ (I like it because it's opposite ends of the keyboard. Easy to find :)

Might steal C-n and C-P, although C-[ C-] are tempting.

[mitchty]

Interesting we both came up with C-\ for tmux, I like using C-a and C-b in emacs too much. Plus I forget whatever it does in emacs so it can't be important.