CarMD A winner of an Edison 2010 Best Products Award, this cool diagnostic tool includes everything needed to monitor your car’s health — including an easy-to-use handheld diagnostic device, Mac/PC software, USB cable and lifetime software and firmware updates. Completely redesigned this year to include features such as vehicle recalls and technical service bulletins, CarMD works on all vehicles manufactured for use in the United States since 1996 — foreign and domestic. Just plug it into your car’s onboard diagnostic port (CarMD.com shows you where it is) and the device’s color-coded lights will tell you if your ride has any problems lurking under the hood. If so, just use the included Mac/PC software and your computer to tap into CarMD’s online database to generate a Vehicle Health Report. You willl receive an easy-to-understand overview of what’s wrong and what it will take to fix it — down to estimated parts and labor costs in your zip code. $98.99.