Back to school--three words kids hate and parents (let's admit it) look forward to. Too much unstructured summer vacation gets old. But no parent looks forward to school homework battles. And no kid does either. Here are free online study aids and calendar apps to motivate students. The penny pincher in me loves that these apps cost nothing and save money on school supplies. Students, you're going to love these apps--they're helpful, they make sense and they don't treat you like a little kid. Read more Read on