Over the years, we've used annual memberships to different places to great effect. We've done Philadelphia Zoo, Please Touch Museum, Adventure Aquarium, and Franklin Institute. Recently, we became members at the African American Museum in Philadelphia, and the past two weekends I've taken Asher there as a part of a larger downtown trip that also hits Franklin Square, Chinatown, and Reading Terminal Market.
Read that paragraph above. Look at all of those great Philadelphia institutions. What a great cultural experience our kids are getting. (And cheap eats too!) It's good to be museuming once again.