Air conditioning is essential to creating a cool, comfortable climate inside your home. According to the Department of Energy (DOE), however, it's also one of the biggest sources of consumed energy. Thankfully, you can save money on your home's air conditioning bill expenses by following these few tips: #1) Change the Filter Credits: Flickr/ Steven Vance A dirty air filter will restrict airflow through the ducts, forcing your air conditioner to consume additional energy to cool your home. To promote higher efficiency and better performance, change your system's air filter at least once every 60 days. #2) Turn Up the Thermostat Public Domain, ...