power
i bought a power converter thingy for in the car. it can also be used on an airplane. we used it on the drive to and from san diego. it plugs into the power thingy in the car where the cigarette lighter used to be. the laptop charger then plugs into it. the boys watched a scooby doo video. we could have also plugged the cell phone charger into it. i suppose in case of emergency we can use the car as a generator. woot! it was worth every penny of the $50 i paid for it.