Here’s an idea for all you out there who have old fashioned CRT monitors.
If you want your wife/IT guy/boss to approve a flash new monitor, simply turn off your monitor and tip it on it’s side. Then turn it back on. It’ll look normal, but when you turn it back the right way up it’ll look rather funky.
This is because the change in orientation changes the way the earth’s magnetic field messes with your monitor, screwing up the beams that create the picture. Some monitors have a “degauss” button which rests this but with most you simply turn off and on.