People often think symmetry means using even numbers, but working with odd numbers feels more natural. It’s a bit like planting bulbs: groups of three and five look better than two or four. Identify the room’s focal point and find a balance. With a fireplace, if you put a table on one side, you want something on the other and, unless it is of the same visual weight, you feel uncomfortable. Symmetry and order may seem inconsistent with the very notion of creative interior design, but these classical qualities underpin the most relaxing schemes.