Headphones and extension cables. Mum's partner is going deaf, and headphones mean he can turn up the volume on the TV as much as he wants without making everyone else deaf. It's been really irritating me, having the TV blasting through the house, and it hasn't been much fun for my mum or dog either. He might have nothing more serious than wax in his ears, but he refuses to go to the doctor and get it checked out.