"Bubblewrap initially was just fancy wallpaper.

Also, superglue was invented by accident, when engineers couldn't separate glass sheets after attempting to make clear plastic. Later it was used in battlefields to temporarily close wounds."

"My dad bought a fruit scale specifically for the purpose of weighing meatballs. His reasoning was that, if all the meatballs he prepared are the same weight, he'd only have to poke one to know whether or not they were all cooked because the heat absorption would be more or less identical."