You should use blinds or shutters, yet neither one of these options gives you an elegant look or even choose your décor in the majority of cases. Curtains and draperies are often the best choice as you can simply match these with the remaining portion of the décor instead of using plain colored blinds that do nothing for the feel of a room.
If you happen to have a bay window in the center with typical windows on both sides, you are able to create a wonderful sitting spot that will be comfortable and lovely at the same time. For the bay windows, have curtains that will drop just to the window chair and for the other windows have the identical style and color curtains fall to the floor. Now, when you start the drapes or curtains it will have an amazing effect of the entire room.