Yea, RSI is nothing nice, I spend too much time using my keyboard, usually using VIM. As I don’t have much time for writing, today I’ll just place a small vim mapping for not using the <ESC> key too much, this is quite simple:
imap ;; <ESC>
What it does? Well… placing that in my ~/.vimrc file lets me using ‘;;’ instead of pressing the <ESC> all the time. Of course the key is that I don’t use the double ; for anything else.