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A wall-mounted, plug-in appliance includes a housing and a plug assembly, which is rotatably disposed within the housing. The plug assembly includes (i) a plug for electrically connecting the plug assembly to a wall outlet and (ii) at least one integral extra outlet to which another electrical appli

A wall-mounted, plug-in appliance includes a housing and a plug assembly, which is rotatably disposed within the housing. The plug assembly includes (i) a plug for electrically connecting the plug assembly to a wall outlet and (ii) at least one integral extra outlet to which another electrical appliance can be plugged in. The plug assembly conducts power to electrical components of the appliance at each of at least two 90-degree intervals of rotation of the plug assembly, and the extra outlet is accessible through different ones of a plurality of windows in the housing at different 90-degree intervals of rotation of the plug assembly.

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1. A wall-mounted, plug-in appliance, comprising:a housing containing electrical components of the appliance, the housing including a plurality of windows; and a plug assembly rotatably disposed within the housing, the plug assembly including (i) a plug for electrically connecting the plug assembly

1. A wall-mounted, plug-in appliance, comprising:a housing containing electrical components of the appliance, the housing including a plurality of windows; and a plug assembly rotatably disposed within the housing, the plug assembly including (i) a plug for electrically connecting the plug assembly to a wall outlet and (ii) at least one integral extra outlet to which another electrical appliance can be plugged in, wherein the plug assembly conducts power to the electrical components of the appliance at each of at least two 90-degree intervals of rotation of the plug assembly, and the extra outlet is accessible through a respective one of the plurality of windows in the housing at different 90-degree intervals of rotation of the plug assembly. 2. The appliance of claim 1, wherein the electrical components contained in the housing include at least one of a heating device, a fan, a light, and a circuit board.3. The appliance of claim 1, wherein each of two mutually orthogonal sides of the housing includes a respective one of the plurality of windows, each of the two sides being adjacent and substantially perpendicular to a third side of the housing from which the plug of the plug assembly extends.4. The appliance of claim 1, wherein a pair of rigid conductive members electrically connects the extra outlet to the plug.5. The appliance of claim 4, wherein the plug assembly is substantially cylindrical in shape and includes two integral extra outlets spaced approximately 180 degrees apart on the cylindrical surface of the plug assembly.6. The appliance of claim 5, wherein the pair of rigid conductive members electrically connects each extra outlet to the plug.7. A wall-mounted, plug-in appliance, comprising:a housing containing electrical components of the appliance, the housing including a plurality of windows; and a plug assembly rotatably disposed within the housing, the plug assembly including (i) a set of plug blades, extending in a direction parallel to the axis of rotation of the plug assembly, for electrically connecting the plug assembly to a wall outlet, and (ii) at least one integral extra outlet for receiving a set of plug blades of another electrical device, the extra outlet being oriented such that the plug blades of the other electrical device, when inserted into the extra outlet, extend in a direction substantially perpendicular to the axis of rotation of the plug assembly, wherein the plug assembly electrically connects the electrical components of the appliance to the wall outlet at each of four 90-degree intervals of rotation of the plug assembly, and the extra outlet is accessible through a respective one of the plurality of windows in the housing at at least two of the four 90-degree intervals of rotation. 8. The appliance of claim 7, wherein the extra outlet is accessible through different ones of the plurality of windows in the housing at at least three of the four 90-degree intervals of rotation.9. The appliance of claim 7, wherein the electrical components contained in the housing include at least one of a heating device, a fan, a light, and a circuit board.10. The appliance of claim 7, wherein each of two mutually orthogonal sides of the housing includes a respective one of the plurality of windows, each of the two sides being adjacent and substantially perpendicular to a third side of the housing from which the plug blades of the plug assembly extend.11. The appliance of claim 7, wherein a pair of rigid conductive members electrically connects the extra outlet to the plug blades of the plug assembly.12. The appliance of claim 11, wherein the plug assembly is substantially cylindrical in shape and includes two integral extra outlets spaced approximately 180 degrees apart on the cylindrical surface of the plug assembly.13. The appliance of claim 12, wherein the pair of rigid conductive members electrically connects each extra outlet to the plug blades of the plug assembly.14. An electrical plug-in device for dispersing a chemical active into a surrounding environment, the device comprising: a housing including a plurality of windows;at least one electrical component contained within the housing for enhancing dispersion of the chemical active to the surrounding environment; and a plug assembly rotatably disposed within the housing, the plug assembly including (i) a plug for electrically connecting the plug assembly to a wall outlet and (ii) at least one integral extra outlet to which another electrical appliance can be plugged in, wherein the plug assembly conducts power to the at least one electrical component at each of at least two 90-degree intervals of rotation of the plug assembly, and the extra outlet is accessible through a respective one of the plurality of windows in the housing at different 90-degree intervals of rotation of the plug assembly. 15. The device of claim 14, wherein the at least one electrical component comprises either a heating device or a fan.16. The device of claim 14, wherein each of two mutually orthogonal sides of the housing includes a respective one of the plurality of windows, each of the two sides being adjacent and substantially perpendicular to a third side of the housing from which the plug extends.17. The device of claim 14, wherein a pair of rigid conductive members electrically connects the extra outlet to the plug.18. The device of claim 17, wherein the plug assembly is substantially cylindrical in shape and includes two integral extra outlets spaced approximately 180 degrees apart on the cylindrical surface of the plug assembly.19. The device of claim 18, wherein the pair of rigid conductive members electrically connects each extra outlet to the plug.20. A plug-in vaporizer for dispersing a chemical active into a surrounding environment, the vaporizer comprising:a bottle containing a liquid formulation including at least one chemical active; a wick, having a lower portion disposed within the bottle and an upper portion protruding from the bottle, for drawing the liquid formulation from the bottle toward the upper portion of the wick; a housing in which the bottle is detachably retained, the housing including a plurality of windows; an electrical heating device, disposed within the housing at a position proximate to the upper portion of the wick, for enhancing evaporation of the liquid formulation from the upper portion of the wick; and a plug assembly rotatably disposed within the housing for supplying power to the heating device, the plug assembly including (i) a set of plug blades, extending in a direction parallel to the axis of rotation of the plug assembly, for electrically connecting the plug assembly to a wall outlet, and (ii) at least one integral extra outlet for receiving a set of plug blades of another electrical appliance, the extra outlet being oriented such that the plug blades of the other electrical appliance, when inserted into the extra outlet, extend in a direction substantially perpendicular to the axis of rotation of the plug assembly, wherein the plug assembly electrically connects the electrical components of the appliance to the wall outlet at each of four 90-degree intervals of rotation of the plug assembly, and the extra outlet is accessible through different ones of the plurality of windows in the housing at at least two of the four 90-degree intervals of rotation. 21. The vaporizer of claim 20, wherein the extra outlet is accessible through different ones of the plurality of windows in the housing at at least three of the four 90-degree intervals of rotation.22. The vaporizer of claim 20, wherein each of two mutually orthogonal sides of the housing includes a respective one of the plurality of windows, each of the two sides being adjacent and substantially perpendicular to a third side of the housing from which the plug blades of the plug assembly extend.23. The vaporizer of claim 20, wherein a pair of rigid conductive members electrically connects the extra outlet to the plug blades of the plug assembly.24. The vaporizer of claim 23, wherein the plug assembly is substantially cylindrical in shape and includes two integral extra outlets spaced approximately 180 degrees apart on the cylindrical surface of the plug assembly.25. The vaporizer of claim 24, wherein the pair of rigid conductive members electrically connects each extra outlet to the plug blades of the plug assembly.