I fire up Mac OS X 10.5.
Lacking that I use lots of monitors, turn off window snapping, swap the ctrl and alt keys. I cringe a lot. Why can't windows store position and size hashed to monitor layout? I get that PC hardware is janky but why the random monitor layout? I never want mirroring, why is mirroring the default? Why would I want 2K resolution on a monitor that can do 4K? I could go on.
I am adept with the mouse so I have come realize that we all have different preferences.