Keyless Car Entry
Keyless ignition is popping up all over the place. The concept is simple; a key fob that the user keeps handy enables the user to start the car by pushing a button. Similar key fobs will work for keyless entry: As you approach your vehicle, with you key fob in your pocket, the car will automatically unlock for you. In 2011, nearly every major automaker has produced a model that has such a system--and it's likely to become more commonplace as time goes on.
Image credit: via AriannaOrland.com