I also try to save electricity in every possible way. So far, it has paid off every year; I have always gotten money back. I have energy-saving bulbs or LEDs everywhere, all devices are connected to a switchable power strip, and when I cook, for example, pasta or eggs, I always turn off the stove once the water has come to a full boil. I have an electric stove, so this works very well because the plate remains hot for a long time afterward. And of course, when I'm not sitting at the desk at the PC, I also turn the PC off. Many people nowadays turn their computer on when they get up and off when they go to bed—even though they only sit in front of it sometimes—I don’t want to know how much extra cost that means for them per year.