I love every piece of paper my boys scribble on. I don't keep every piece of paper, but I do keep enough to embarrass them in high school. The frig was an okay space to display but I wanted something more "artsy" plus I had a large blank space on which to play. Our walls are paper-thin so I wasn't keen to use nails and string and things. Some sticky velcro tabs were just right for attaching clip boards and old school slates (hot glued with mini wooden clothespins) to the dining room wall. I found the huge frame on the side of the road already painted red — sweet! I'm happy with the results. And so are the boys.
(The mini-poster in the middle is hard to read. It says "Good Moms Have Sticky Floors, Dirty Ovens and Happy Kids." Awesome! It's a free printable from Paper Coterie — double awesome!)