My primary reason for a laptop is that I can do my banking and Email at my
leisure and then Carry it to find a store or other phone port to get to my bank
and IP. Up load and down load only takes a couple of minutes each. ( My bank
is don direct connect to an 800 number not on line ).

In my travels it isn't hard to find a phone plug to use. Some times after
working hours on the side of buildings.

It runs off the 12V direct.

Mike