When I was younger, my favorite part of back to school time was being able to buy brand new colorful school supplies. Oh, who am I kidding, it's still my favorite part! I always aim for cuteness over function, but who says you can't have both.
Something about pretty notebooks and pens seems to make note-taking and homework slightly less painful. The Lisa Frank folder is one of my personal faves. They've even reissued some of the designs around when I was in elementary school. These school supplies will be the envy of all your peers. Just make sure they don't "borrow" them and "forget" to bring them back!