If you’ve ever sat in rush-hour traffic, gazing longingly at the cars rushing by in the high-occupancy vehicle lanes, try doing something your parents warned you never to do: Hop in a car with a complete stranger behind the wheel.

In a few cities, like Washington, D.C., formerly lone motorists can zip over into those HOV lanes thanks to a rare breed of commuter called a “slug.” And with gas prices through the roof there’s now an extra incentive to do it.

[Read, Listen, and/or Watch](http://www.npr.org/templates/story/story.php?storyId=90700559 “Read, Listen and/or Watch”) (NPR)