In problems dealing with the Earth's gravity, students are frequently bewildered by the fact that the two common expressions for potential energy, "mgh" and "-Gm[subscript e]m/r", differ in sign and differ considerably in form. Some textbooks demonstrate that the more familiar first expression is a special case of the more general second equation providing that an object is near to the Earth's surface. In this paper I derive an equation that resembles the familiar "U = mgh" but that applies to an object of mass "m" at any height "h" above the Earth's surface.