Allow more light to enter the living room area by using light curtains. Instead of using heavy looking "valances" use basic and if possible semi transparent curtains that are only enough to reduce glare that has to be caused because of sunlight. Use brighter color schemes commonly known as "hot" color schemes. These create a very good transmission and reflection of natural as well as artificial light inside the living room. There is certainly one more different method to defining the thought of the living room (or any interior space) and that's the empty volume put aside after all the furniture together with other accessories have been fitted. Because anything inside our living world is always "relative". The perceived volume is always relative to the empty volume which is normally used for circulation. The more empty volume you get, the bigger the room will look.