- Teens and young adults are snapping self-portraits while driving and posting them online
- The photos may have hashtags like #drivingselfie or #drivinghome
- It's "putting your life in danger and ... the lives of those around you," says safety advocate
- Distracted driving causes more than 3,300 deaths a year, according to the DOT
(CNN)Drivers are endlessly creative when it comes to finding dumb things to do while behind the wheel: eating, texting, reading a map, applying makeup.