DFW airport appears to have discovered an as-yet-unknown-to-me way of making air travel unpleasant — there are no electrical outlets anywhere. At first, I’d thought this was just a particular instance of the common airport phenomenon of insufficient outlets. But no — there are these power charging stations where you can pay money and charge up your iPod, cell phone, laptop, whatever. Nice work. It makes you wonder why they let you use the restrooms for free. Both in the airport and on the plane, that’s a potentially lucrative profit center.