GPS is most useful in urban environments (though skyscrapers are a PITA) with lots of one-way streets, restricted junctions etc. Long road trips hardly need a G

GPS is most useful in urban environments (though skyscrapers are a PITA) with lots of one-way streets, restricted junctions etc. Long road trips hardly need a GPS at all, particularly if you're using motorways, as you can go a dozen miles between intersections and you may only change direction every two or three hundred miles.