google navigation if you have a phone and unlimited data package. works just like a satnav, better even.
course, if you drive abroad at all, you’ll need some sort of stanav with maps, otherwise you’ll get absolutely pumped for roaming charges. i didn’t just spend as much as a budget satnav doing that, oh no… 😉
i’ve tried a garmin nuvi 245w and a tomtom of some description recently. preferred the tomtom, but bought the garmin as they sponsor a cycling team. 😉