San Francisco is debuting a pretty awesome new parking service, that will help you find a spot thanks to sensors and your cell phone. Sensors installed in parking meters around the city ping you through your cell phone to let you know where there are empty spots nearby. You can also look up the parking situation before you leave the house and, best of all, pay the meter through your cell phone. It will then let you know when you’re meter’s running out. If this system works, look for it in a city near you.