We've become so dependent on GPS that a three-minute drive often means frequent glances at an in-car navigation companion. But taking your eyes off the road can be very dangerous, even if it's only for a moment. If you're fortunate enough to have one, a head-up display will let you get to your destination efficiently and safely, and Garmin's got a new aftermarket solution to keep you cruising on the cheap. The company's new HUD projects bright directions onto a transparent film mounted on your windshield, serving up guidance within your regular line of sight. The simple interfa
