set -o vi

<esc> puts you into vi mode at the cli prompt with all the semantics of the editor.

These carpal tunnel riddled hands can’t be bothered to reach for ctrl or alt let alone arrow keys.

If you aren't aware already, you can put 'setxkbmap -option ctrl:swapcaps' in one of your startup config files, like .bashrc or somesuch. That flips left CTRL and CAPS LOCK.