Abstract: A mirror for use in a shower or other location which is formed of a thin sheet of impact-resistant material having a reflective front surface and a smooth back surface. The sheet of material is light in weight relative to its area. It is temporarily adhered to a smooth, substantially vertical, flat support surface, such as a shower wall, in a stable position by a liquid film applied to either the mirror or the wall. A method of mounting a mirror in the form of a thin, lightweight sheet having a reflective front surface to a smooth, flat wall including the steps of wetting either the mirror or wall, and adhering the mirror to the wall by pressing the mirror against the wall to form a liquid film behind the mirror is described.