Just cleaned out mt garage, closet, and attic. No clue why I kept every single box of anything electronic/tech based in the last ten years. I just tossed boxes for phones I haven’t had in years, old CPU and heat sync boxes, boxes for 100mbps nics, old modems I don’t have anymore. I’ve never needed any of these and have brought them with me through too many house moves.
I usually don’t keep boxes past the retail return window.
However, I am keeping the box for my ultrawide monitor until such time that I no longer have said ultrawide.