Business and home offices use a significant amount of electricity for heating and cooling, lighting and operating equipment – in fact, 70% of office building energy consumption is electricity. Lighting, computers, copiers, air conditioners, heaters, appliances, doors, windows, and vents -- everything that uses energy or keeps hot or cool air in or out is an opportunity to save. Keep your eyes peeled and ears open for common-sense ways to make small changes that can add up to a big impact, especially when others notice your ideas and join in.