Energy Efficiency Day is celebrated on the first Wednesday of October each year. It is an opportunity to join in on activities to reduce energy use. Energy Efficiency is using less energy while providing the same, if not better service. The Missouri Department of Natural Resources would like to help you identify money saving, energy saving tips for you and your home to become more energy efficient. Everything from no-cost actions to long-term energy saving actions can help save you money over the long term, help reduce energy use and have positive environmental effects. You might be surprised how little you need to do to save a month’s worth of electricity, or even more.