LEAVE SPACE FOR MANEUVERS. As practice shows, to fully plan the upcoming purchases of decor and strictly adhere to this plan is an almost impossible task. Therefore, it is better to leave a little free space, which will take the fruits of impulsive purchases. BALANCE BETWEEN VIOLATION AND COMPLIANCE WITH THE RULES. To create a truly outstanding room in terms of decor, you have to step over a number of rules. But there are laws that are strictly not recommended to be violated. For example, among them are the rules for mixing prints, the non-observance of which will make any interior disharmonious. CLASSICAL RULE OF THREE. Items collected in a composition of three should differ in three ways - shape, color and size. For example, you should not put three identical photos on the mantelpiece. It is preferable to choose a photo, a vase and a book as a decor - objects that differ in each other according to all the mentioned signs.