<human>: How can I make sure that the temperature in my house is always at least 68 degrees Fahrenheit?
<bot>: To ensure that your home's temperature stays within a comfortable range, you should install a programmable thermostat. This device will allow you to set a desired temperature and then adjust the settings accordingly. Additionally, it is important to keep windows and doors closed during the winter months to reduce heat loss through the openings. Lastly, consider investing in an energy-efficient heating system or air conditioner for more efficient temperature control.