Less is more. The most important rule to remember when decorating any room is don't clutter. Less really is more. Choose simple pieces and keep the extras to a minimal. What decorations you do use, don't over do it but rather select a few quality items.
This is not to say that all items need to be made in the same period, have the same texture or be of the same color, but instead that you should stick with a few themes and make sure that one or two are reflected in each and every piece of furniture that you have in your living room.
Having rugs in your living room will make it warm and cozy. Without any depth or color, all you see is bare floors and furniture. Rugs make the room look elegant with a touch of essence. No longer will you have to go into a drab looking room that doesn't have any color or sense of style.