Aesthetics aside, paying attention to scale and proportion can have very practical upsides. While you may not have the ability to change the shape and size of furnishings and decorative objects in your home, you can use the principles of scale and proportion to help shift perceptions of those objects.  For example, if you're in the midst of a move and your couch ends up being too small for your new living space, a rug, artworks, and perhaps an accent chair can help to fill the space. By giving your couch a sense of proportionality in relation to the other objects in the room, you can distract from the couch's lack of scale compared to the space itself. The same rational can be applied if you mistakenly purchase a furnishing or decorative item that is too big or too small for your space.  For instance, a small piece of art above a king-sized headboard might look lowly and odd, but by simply adding two more artworks to form a grouping of three, that area will make a bigger visual impact and will look more proportional the headboard, and probably even the wall itself. In other words, by simply editing the items in your space and enhancing the proportionality of one item compared to the next, you can lend an intentional feel to what would have been buyer's remorse.