I'm going on vacation at the end of this month with my wife and grandsons (from Denver to San Francisco). I have found some stopping points and created contacts of them, hoping to have the addresses and maps easily available. I'm cheap about using my phone's minutes, although our iPads could be set up with my phone as a base station. I figure mostly we will use the Internet when we stop. I'd like some recommendations on how to best use my phone/pad/etc to facilitate getting to fun stops.