5 secrets to save your teen on car insuranceLet the insurer track your drivingCarriers have rolled out programs using "telematics." They're electronics that lets the insurers see how good a driver you are.It is a little piece of hardware that plugs into the bottom of the steering column of your car and transmits data back to the carrier about how fast you're driving, how hard you hit the brakes and the time of day you're on the road.Make sure you're getting [...]