What to do this weekend?
--See a museum for free with Smithsonian's Free Museum Day.
--Get some used books at the SF library's giant book sale.
--Dine at the food truck even in Larkspur.
--Pick some apples or visit a pumpkin patch.
--Find your way through a corn maze.
--Go see Shrek the Musical.
--Check out Red Tricycle's list of weekend events.
--Check out Savvy Cities' list of weekend events.
--Check out SFKids.org's calendar of weekend events