In addition to using text editors like vim or emacs and using a tiling window manager, what other programs do you use to reduce usage of the mouse? I recently discovered warpd which is similar to vimium's hint mode but works globally.
I find that I prefer a graphical environment to understand what's going on, then a keyboard-focused environment (usually text based) once I reach the point that I know what to do and want to increase speed and repeatability.