A while-in-use electrical device cover that includes elliptical and more than five-sided cover shapes is disclosed. Specific implementations feature a while-in-use electrical device cover that includes a base having an aperture configured to receive the face of an electrical device, a lid configured to close over the base through a hinge while an electrical connector is inserted into the electrical device, and a cord port extending through a surface of the cover. The base and lid are substantially elliptical. The base, lid, and hinge may be manufactured from plastics or other conventional material for a while-in-use electrical device cover using conventional fabrication methods.