5. Performance Fitness "Build A Backpack!" Campaign through September 7 in Wynnewood and Havertown. Performance Fitness has partnered with the Cradles to Crayons "Ready for School" program and set a goal of building 60 backpacks to ensure the success of children in need. Attend any class for just $5.00 per class from now until 9/7. Your donation will go toward our Build A Backpack campaign. For full details, and to register, go to www.BuildABackpack.net.