I'm amazed at just how easy it is to find a good wireless connection.
Whenever I am out on the road, all you have to do is drive into a residential or business area and you will almost certainly pull up a signal within a couple of minutes. Get a power supply to plug into your car, and you are in business (literally)!
It also seems to work in hotels. I would say that in probably 20% of the places I stay, I can pick up a signal.