jim's action: Adjust my thermostat
Heating and Cooling makes up about half of the energy usage of any home and adjusting your thermostat can reduce your heating or air conditioning bill by about 3% for every degree you move it.
Note: If you're already doing this action, take a look through each of the steps and make sure you haven't missed anything. If all's well, go ahead and check off all the boxes, then go start something new!