I use a Microsoft MultiMedia Keyboard 1.0A, with a blob of Blu-Tac over the Num Lock LED, and I have done so for as long as I can remember. And as of today, I’m down to my last one.

I have a MacBook Pro that I use for most things, and a desktop Windows PC I mostly use casually to play games. I like the Apple Magic Keyboard enough that I’ve figured out a way to use it with ...