Assessment Bulletin Board. This bulletin board would be a great tool to use as an exit ticket out the door. Asking students what stuck with them makes their learning generative each day. This idea could be altered to suit many classroom needs.
Common Core for Parents... great for Curriculum Night or Conference Night. Great also for homeschooling parents to review for possible inclusion in their children's lessons. I think it would surprise many people how very much these ideas are already included in the homeschooling experience.