I've used `set -o vi` for a while but found that emacs-like keybindings are much, much better for inline editing.

And yes, even one keystroke saved matters.

Oh no, I totally understand - typing this on a happy hacker keyboard ;).

I'm just somewhat of a cynic, since my workflow tends to fall on its face when I'm on a server that uses special snowflake rc files. Furthering that cynicism.. these days I'm just using plain /bin/sh for any shell scripts just because of the amazing level of bloat that exists within bash.