Get your car a heads-up display on sale and snag the navigational tool of the future

Don't GPS and drive, y'all: As helpful as they can be, smartphones are actually one of the leading causes of distracted driving accidents. Built-in routing tools and smartphone apps alike can steal your attention away from the road, whether you're just glancing at a screen or gutsily reprogramming your route mid-drive.   But hey, it's not like you're going to start using MapQuest again anytime soon. There's a reason so many people rely on GPS to get around: It's nice to have turn-by-turn dire...