I must have been watching too many of those e-sure adverts {the ones with the mouse in a mouse, he explains confus-ed-ly} on the telly, that or eating too much cheese .. but I just wondered - How far does a mouse travel every day ?

& don't tell me .. about 6 inches up, right, left or down depending, I know that bit .. so come on folks with nothing particularly better to do , how am I gonna work it out ?