Heating and cooling your home will usually be a major expense as a homeowner. If your house is well insulated and you still would like to save money on your monthly bills, it might be worth taking a look at your thermostat. You might not think about your thermostat much beyond setting it for the desired temperature, but in fact, there is much that a thermostat can do to contribute to lowering your bills.
If you still have an old-fashioned thermostat, it is possible that the sensor could turn faulty. It could be worth it to check that the temperature displayed on the thermostat matches that of a thermometer close to it. Installing a digital thermometer is a wise investment, since they usually are more accurate, plus, it gives you the ability to schedule it for periods when you are out of the house or sleeping and saving extra those times. If you want to go one step beyond this, installing a smart thermostat that connects to your WiFi will give you a lot more customization for your thermostat.