Hang sheers by themselves on windows, using a decorative curtain rod and the sheers of your choice. Try a dark-wood curtain rod to complement a dark-wood window frame or a pewter rod for a contemporary decor. Simple sheers work well on a window where you don't get a lot of sunlight and you don't need to worry about privacy in the evening.
Install a double curtain rod above the window so you can hang both the sheers and heavier curtains. Hang the sheers closest to the window and the curtains on the inside. Leave the sheers closed all the time to add privacy to the room but allow light in. Open just the curtains when you want light and close them for a darkened room or to increase privacy. Depending on the type of curtains you have, the rod may or may not show, so select a rod that suits your curtain style.
Cover French doors with sheers by using sheers that have a pocket at the top and bottom. Install French-door curtain rods at the top and bottom of the window and insert the rod into each pocket so the sheers cover the glass. This is the best way to hang sheers on French doors because any other type of installation will allow the sheers to blow and get caught in the door. Open the sheers slightly by tying them at the waist with a decorative sash.