Just get in the habit of checking for your keys before you go through any door. It takes no mental effort once it’s a habit. If they aren’t in your pocket (or in my case a lanyard) then they are in that room or vehicle, so you should recover them before going out. This method worked for me 100% for decades. It only failed after I got married and my wife started stealing them. But it’s usually not too hard to find her.

To install it on emacs 29 paste this into a scratch buffer and evaluate it:

(package-vc-install
  '(minimpc :url "https://codeberg.org/nmtake/minimpc.el.git"))

And put this in your init.el: (require 'minimpc)

You don’t need Vertico or Orderless. I’m using emacs’ built-in completion–it works fine.