Is the thermostat in your home a source of fights and arguments? Depending on the temperature that everyone finds comfortable, it could make for some strained relationships, and it doesn’t help if the thermostat doesn’t work well.
Older thermostats might have issues where the temperature sensor isn’t as accurate as it once was, which is why it can be beneficial to upgrade by installing a modern, digital thermostat.
Another issue that could affect the functionality of a thermostat is when there is a heating source nearby. You should make sure that there aren’t any vents that are blowing hot air from the HVAC system directly onto the thermostat, or, if you have a system with separate sensors in other locations, these should be checked as well.
With a digital thermostat, you can save a lot of money by keeping it on a schedule, only keeping the temperature at a comfortable level during times when you need it, and letting it be closer to the ambient temperature at other times.