I’ve gone all in on LED Christmas lights. It saves electricity and money. LEDs are cooler than incandescents, which makes them safer. They last longer, and I can attach 25 strings end-to-end without overloading a wall socket. What to do with my old lights? I don’t want to throw them in the trash, because they contain toxic materials. I will recycle the old light strings at WCPC! That’s a win-win.