There may also be ways to cut down on artificial lighting, instead letting more natural light into your home. Natural light contains vitamin D which is good for the skin and is also thought to ward off depression.
The best way to let in more natural light is to add more windows. Many people add skylights to their homes as a way of helping natural light to flood the room from above. Bay windows meanwhile can similarly increase the amount of light that enters a room.
If installing new windows is out of your budget, you may still be able to let in more natural light by finding ways to reflect it. Mirrors places opposite windows can help to brighten up a room whilst reflective surfaces such as laminated wood and polished stone can also let in extra light.