Lost over which sat nav case to buy satellite navigation systems have recently revolutionized the way we get from a to b with a large proportion of us now using them on a regular basis whether it to navigate to places of interest on holiday find a client address for work or to simply help find an alternative route around an accident diversion or road block so as to keep them close to hand our sat navs usually get carried around with us in our bags or thrown into the glove compartment where left