2. More light
If your living room can get plenty of natural light, don't block it with dark curtains or blinds. Open them to encourage the entire sun to reach the space you may. This natural home trick improves the room look and gives it a fresh, natural feel, which helps you to stay as long as possible.
If you don't have a large window that gets a lot of natural light, do what you can and move on to other ways to brighten the room. You can focus on brighter colors and add a few lights to make the space brighter during the day.