I ordered a wired mouse and received a wireless one by accident. I knew I was going to appreciate this enough to never go back.
Sigh.
Now I'm yet another person who has to remember to turn off their mouse at the end of the day (and will definitely forget).
@cmajuscula I've tried trackballs before. They're great for precision work. (Except for the tiny little ones they tried putting on laptops in the 90s.)