Sounds obvious right? Well … not as obvious as it might seem. According to one survey by Lutron, 90% of Americans know of someone who forgets to turn out lights when leaving a room. Do you have signs next to light switches in conference rooms to turn out lights? Have you considered motion-activated lights in little-used hallways or common areas, that will turn off after a period of time and turn on only when someone enters the space? Think of ways to remind people to turn off lights, or have lights turn on and off automatically.