We have a Garmin hand-held, which is great. Wonderful. So incredibly useful! Imagine having to miss a turn because of construction barrels in NY city, on a street you've never been to, and immediately the device remaps it, and tells you where to turn to get back on track! No set of directions, or map reading can do that within 5 seconds, especially as it's hard to tell on many maps which streets are one way the wrong way!

And because it's hand-held, you can use it walking around as well, useful for Paul when he was on foot outside of Las Vegas wanting to see the petroglyphs in a State Park ... it took him right to them!