President Obama leaves today for 10 days of vacation on Martha's Vineyard.

That got us to thinking about the history of presidential vacations and how President Obama's sojourns compare to past presidents. The result? This "In Play" clip that tells you everything you need to know about presidential vacations -- including which president took the longest one -- in a little over two minutes.

Grab those beach bags: As the Obamas jet off to Martha's Vineyard, Chris Cillizza and Jackie Kucinich compare presidential getaways, by the numbers. (The Washington Post)