Many people shut off their lights for an hour on Earth Day in their country. Do u think it made any impact?

Many people are told to save money and power by using flourescent lights and yet the Capital building in Sacramento,CA. won't change their lighting to flourescent. What's up with that? I believe that gigantic companies may make a difference by turning off power. But I am in a small three bedroom house. Hardly will make a difference. I see these gigantic companies, Casinos, etc. with their lights on around the clock. It would be great if they participated more often.