This is what I did:
- I bought matted frames and a cafe curtain rod at Walmart. Walmart Homepage
- I put my favorite kids' paintings in the frame (change 'em out periodically).
- The kids put the rest of their work on the cafe rod (hung by shower curtain clips).
- After their work has been displayed for awhile, I either throw it away, take a picture, or put it in the baby book.