Answer : First, you need to develop a thorough understanding of the guiding principals such as color theory, materials and texture. Then you'll be in a better position to judge what is or isn't going to work for you. Secondly, since it is such an important area of social life, I would recommend that if at all possible, you go through some formal training courses on design principles. But if not possible due to time constraints or other commitments - make sure that if your space will give off limited light from any window - use more luminous natural materials such as amaranthine-colored linen with patches of lighter colors like white cotton fabric for example. When choosing furniture do pay attention not just to aesthetics but also function.