This is a video demonstration of the Quadsaw, a $250 power drill attachment capable of quickly cutting square and rectangular holes in plasterboard for electrical outlet and light switch installation. What a time to be alive. Alternatively, do what I do and just punch holes in plasterboard. Sure they're not perfectly square, but I'm not exactly on a construction job here, I'm just angry. Honestly, between all the holes and the water damage I don't know how much of my security deposit I'm getting back. "Put your 30-days notice in, torch the whole building." I knew there was a reason I liked you.
Keep going for the video.
Thanks to Marion O, who makes square holes the old fashioned way: with arcane magic.