Yes, a thermostat can save you money on your energy bills by allowing you to control the temperature of your home more efficiently. Programmable thermostats, for example, allow you to set your heating and cooling system to automatically adjust to your desired temperature at different times of the day or week. This means you can save energy and money by programming the thermostat to reduce heating or cooling when you are away from home or sleeping, and to increase it when you are home and awake. This can result in significant energy savings over time, which can translate to lower utility bills.