You can also install a programmable thermostat if you dont have the time to change the temperature.

Adjust Your Thermostat This is one of the simplest and best things you can do to get the most efficiency out of your residential and commercial HVAC system. Most people get lazy and leave their thermostats in the normal setting whenever they are going to sleep or heading out. Just turning your furnace and air conditioning unit off or slowing it down for a few hours every day can make a huge difference in your utility bills. You can also install a programmable thermostat if you don’t have the time to change the temperature. It’ll simply change the room’s temperature according to your liking and automatically turn off whenever you’re not at home. Have it start heating or cooling before you get back to the house so it’s a comfortable temperature when you arrive.