navagation devices used on trips

Around un-familiar cities and towns, gps is essential. On long road trips it is best to study a paper map. I like to run my Garmin to monitor miles to destination and MPH. On our trip home from Iowa last Monday Mr, Garmin drove us nuts trying route us off of the Kansas turnpike to routes I already knew were poor alternatives. GPS does a good job of lane advise when crossing through major cities and interchanges - assuming it is not going to send you on a wild goose chase. We have a built in device in our Prius and it is the worst GPS ever, a huge waste of money.