Electrical plugs and outlets come in many different shapes and sizes. Why do the holes in electrical outlets have such ...

People have been left gobsmacked after realising why there are holes in the back of extension cords. While you would be forgiven for thinking they serve no purpose, the small holes can in fact be ...

A DIY lover has left people gobsmacked after revealing why extension cords have tiny holes in the back of them. It may seem as though the small key-hole openings don't serve much of a purpose ...