Dressing up your windows with a layered curtain effect can be a great way to not only add a decorative touch to any room, but also to ensure more privacy while also allowing greater control of outside light. One sheer curtain layer can be placed in the background while a heavy curtain or dark color can be used to hang in the foreground. A double curtain rod is the obvious choice to install for this type of window treatment.
Double curtain rod hardware:
Double curtain rod hardware pictured: Levolor 54564.012 Double Brackets with Adjustable Projection for Rods up to 1-Inch Diameter, Satin Nickel, Pair of Double brackets