​​​​​​​DIY: How to control and reduce holiday lighting power costs

National Lampoon’s “Christmas Vacation,” a 1989 comedy classic, featured a main character named Clark Griswold (actor Chevy Chase) whose fixation was on making his house the best decorated in the neighborhood. Through trials and tribulations that included rat nests of light strings, extension cords snaking everywhere, falling off the roof, non-working switches and wiring confusion, the moment finally arrived when he beheld 25,000 bulbs come blindingly to life and cause a citywide power shortage.