This is a great thing to laminate or place in a plastic sleeve on the classroom door so that anyone who comes looking for your class knows where to go whether it's a late student, another teacher or office personnel. Buy a small magnet and place it on top of the location. The caboose can be the one in charge of moving in when the class leaves anywhere and the line leader can move it back to the "Here!" position before entering the room.
It is also editable so you can change the locations if needed. Enjoy!!!