My duct tape idea? Yes I'm sure that until I came along, duct tape was used only for taping ducts. Then one day I was divinely inspired to think that perhaps this sticky grey tape might also be useful in repairing unhinged combination switches. I hope I get credit for bringing duct tape up from the basement world of ducts and air conditioning technicians.

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Think of how much of the world would simply fall apart if suddenly all the duct tape let loose at the same time. It would be dangerous to be out on the street...