by: NICOLE DIEKER,with The Penny Hoarder at www.thepennyhoarder.com Aileen Perilla/ The Penny Hoarder Are you still looking for that great summer experience? We’ve got 100 ideas to help you make the most of your summer – and best of all, they’re all free. Yes, this means 100 free summer activities for kids, parents, friends and more. From camping to coding, use …