Rick Zeman writes "Would you give up your privacy in your car to save a few bucks on your auto insurance? 'Safe' drivers who plug an electronic device into their vehicles will be then eligible for a discount on their insurance. They say, '...the device constantly tracks car speed. By comparing that with a clock in the TripSense device, the device figures how far the car goes, mapping it against the time of day. At the end of each policy term, the customer would download the data and see what discount he or she would get. Customers can see all their data before deciding to send it to Progressive, and can decide not to send it -- and not get extra discounts.' I wonder how soon it will be that everyone has one except those resigned to paying extra as with grocery 'convenience' cards."