Back Scratcher's T-shirt
The fast and logical solution to infernal itching.

The friend (or partner) who offers to scratch your back is a friend (or partner) indeed. Except it all goes horribly wrong when they just can't seem to locate the maddening itch. For those who are fed up of saying, 'left a bit... up a bit... right a bit.., damn!' comes a very special T-shirt, complete with Battleships style, itch-locater grid. The scratchee is also equipped with a hand-held miniature corresponding grid-map, for accurate communication. So when the scratcher says, 'I'm scratching F5, 'the scratchee can say, 'try G7'.