Swimming- we spent a lot of time swimming this summer. Both my kids loved the water and it was an easy way to occupy them
Park dates- we have a great park really close to us that both my kids love. It has a big kid section and a little kid section and benches under trees for mama to sit and watch!
Wizard of oz exhibit- Grapevine had this really cool indoor exhibit this year featuring the wizard of oz. Neither one of my kids know what that is but it was free and indoors. And in August that's good enough for me!