While I may write a story on the occasional use of mass transit by a Hollywood actor or actress, rarely do I find one who consistently uses it on a daily basis.

Vincent Kartheiser is the exception. One of the stars of AMC's smash hit television drama "Mad Men," the 31-year-old loves the public transportation system in Los Angeles, eschewing a fancy car for a more engaging and, in his eyes, simple route to work.

"The buses stay on the streets they are on," he tells The NY Times. "If you get on the 4, it's going to stay on Santa Monica until it becomes Sunset. I don't even know the names of most of the buses. Like the Fairfax bus — it's just the Fairfax bus."

Kartheiser is also quick to point out that getting around via public transport is better for his nerves, giving him opportunities to read, do crossword puzzles, and go over lines. It's also a more social experience.

"I like that my life slows down when I go places," he said. "I have all these interactions with the human race and I can watch people living their life and not just in their car."

As his star continues to rise, it should be interesting to see if Kartheiser remains committed to the mass transit scene — something that isn't so easy for other high-profile celebrities.

If you'd like to give L.A.'s PT system a shot, check out the official Metro site for more details on getting around. Who knows — you may find that it's not so crazy after all to give the car-free lifestyle a spin.

Michael d'Estries ( @michaeldestries ) covers science, technology, art, and the beautiful, unusual corners of our incredible world.

Vincent Kartheiser is mad about mass transit
'Mad Men' star says using LA's public transportation is less stressful and more social.