The TYLT dual USB car charger puts an end to at least one car debate. It’s super simple, really: just a nifty Y-shaped silicone splitter that allows you to charge two USB devices at once from the dash cigarette lighter. It comes in a few pretty colors, and there’s a Micro USB dual charger too.
If your kids happen to have their own devices though? Just make sure those are charged before you get in the car. There’s no W-shaped splitter just yet. –Liz