I bought an over the door shoe holder (the kind that has a pocket for each shoe) and hung it behind my door on the wall. I put pictures of my students on each pocket so they have their own mailbox. I put all their papers that need to go home in their mailboxes and it's their responsibility to check their box before they leave. I also use this as a way of communicating one-on-one with my students. I may drop an encouraging note inside someone's mailbox now and then. They get so excited when they see they have mail! I also have a mailbox for myself so my students can drop me a note too. This is great for students that want to talk but don't really know what to say.