The Smithsonian has a tradition of allowing free access to its museums on September 30th and this year, many more are getting in on the offer. Go here to find any local participating venues in this offer and then go here to print out the free museum admission coupon to be used on September 30th.
I'll try and remind y'all / post this again closer to Sept. 30th just because I think this is such a cool freebie. More people need to get out and get a little culture and knowledge!
Thanks John for the heads up on this one!