Think outside of the blanc. Put down your Benjamin Moore Decorator's White, and opt for color on your ceiling instead. You may think you're playing it safe by leaving yours white, but you're actually just ignoring the potential there.By painting your ceiling a pale hue of a cool color, such as green or blue, you will visually lift the ceiling, since those colors recede, instantly making a small room feel larger. Conversely, painting a dark hue of a warm color will visually lower the ceiling, since those colors procede, making a large room feel smaller or any room just feel more intimate. The ceiling of this vast room was painted an oceanic blue, extending and brightening it, giving it almost an aquarium quality. Are your ceilings painted? Have you considered painting them? How about wallpapering them?