Probably not. I had a whole drawer of them up until a couple of years ago. I chucked most of them (possibly with the exception of one, "just in case"). You'll p

Probably not. I had a whole drawer of them up until a couple of years ago. I chucked most of them (possibly with the exception of one, "just in case"). You'll probably find hundreds of them piled up in the "spares" rooms of loads of IT departments.