If you're a Mac OS X (macOS) power user, you should certainly have a copy of Keyboard Maestro. (If you don't stop reading now and go there. You're welcome.) This tiny little trick requires that you have it...
My HP LaserJet printer is not on the same floor as my home office. Therefore, whenever I print something, I like to keep tabs on the print job so I know when it's finished or has encountered problems. Normally, to do this, you have to click the printer's icon in the Dock.
I hate clicking things when I don't have to.
So I wrote what might be the world's simplest macro. It's triggered by the print job starting, then it clicks the monitor apps which causes the status window to open. Brilliant? Not really, but it is very handy. Here's what it looks like: