Because you've just spent your life savings on World Series tickets, you'll probably love to hear that the SF Public Library's Family Pass Program gives library card holders a chance to experience the city's fantastic array of museums for free. Say what?

To get people out to different library branches and checking out books, the public library organization is giving families with library cards a chance to snag one of 18 passes (which include entrance for 1-2 adults and 1-4 children) to places like the California Academy of Sciences, SFMOMA, the Walt Disney Family Museum, the SF Zoo, the Conservatory of Flowers, the Aquarium and a bunch more. Like a library book, these passes (valued at $80 or more!) must be used within a week, after which they'll go back up for grabs to other families.

Check out the list of branches offering all the different passes to museums, and show up as soon as the branch opens, because it's first come, first serve. Word has it that people get pretty touchy about who's the first in line. This is an amazing opportunity for families to hang out together without spending an arm and a leg!

Photo via mbr on Flickr.com