It can be tricky to fit window treatments on hinged glass doors because stock door handles — especially levers — may not provide enough clearance space. RAK’s X-10-DOR 7/8-, 1 1/2-, and 2 3/8-inch handle extensions are sized for cellular shades, blinds, and shutters respectively. They fit many brands of multipoint mortised door locks and some single-point locks. Sold in various finishes, the brass extensions start at $50 each. RAK, 866/391-0367,