I am embarrassed by the daisy-chained-usb-switched-usb-extended cabling disaster that was the result of trying to get the five(!) peripherals I use daily to easily swap between two computers at a single desk.
It's a rat's nest despite my best efforts.
But dang it, it works and I can swap between by work and home computers with the press of a button so that's pretty neat. And as long as I never ever look under my desk ever again I can pretend it doesn't exist...