Kids bowl free, 2 games per day! Just sign up here in advance. Hopefully they have a place near you. The closest one to me is about 15 minutes away. Not too bad.
Barnes & Noble has a summer reading club. Go here and print out the form. Kids have to read 8 books and then they get to choose a fee book at the store, from select titles of course.
Regal Movie Theaters are having their Free Family Festival. Here is the website to find a theater near you.
AMC has $1 Movies. Not free, but not bad either.
Hope that helps with some summer ideas. I also recommend a mojito once a day to help survive summer vacation. That's for the mom, not the kid.