1. An over-the-door hanging apparatus comprising: a support structure extending along a longitudinal axis and having a rear surface; a first mounting element pair coupled to the rear surface of the support structure, the first mounting element pair comprising a first mounting element and a second mounting element, each of the first and second mounting elements comprising a curved channel; a first elongate member comprising a first surface, an opposite second surface, a first mounting element and a second mounting element protruding from the first surface of the first elongate member, and a first bracket protruding from the second surface of the first elongate member for engaging a top edge of a door; the support structure and the first elongate member coupled together by simultaneously: (1) rotating the first mounting element of the first elongate member through the curved channel of the first mounting element of the first mounting element pair; and (2) rotating the second mounting element of the first elongate member through the curved channel of the second mounting element of the first mounting element pair.