Abstract: A device or structure for temporarily securing a door, which the occupant of a room (such as a motel or hotel room) can affix to secure the door from being opened from the outside, while the occupant is in the room. The apparatus may be carried in a briefcase or suitcase, it requires no modifications of the door or door frame, it does not mar any surfaces, it may be installed or removed quickly by the occupant and is economical to build.