I have figured a good way to save on the electrical bill. I have a 1991 Toyota Dolphin motorhome, and I wanted to decorate my portable home for when I go and visit everyone in my family this year.All I did is install a power inverter in it and regular outside christmas lights, and it helps me to keep an extra buck in my pocket, because it doesn"t need gas for a generator or pluging it into a house to watch the electric meter spin around faster than dvd player.