Window Treatment Ideas - here a shelf bracket is used as a curtain rod holder. This is an awesome site with so many ideas for valances, shades, panels, etc., using a coordinating fabrics and trims - Beyond the Screen Door
There are so many uses for shelf brackets! These are shelf brackets, repurposed to frame a window --- what a clever idea. You could do this to define and separate spaces in the same room, too. (Say an entryway and a dining room.