Change ceiling fan rotation for Summer and Winter

Redirect ceiling fans (MN Chamber of Commerce): "Air conditioning often produces the highest electricity bill in a business or home, especially when it’s used consistently during the summer months. So a worthy goal is limiting your air conditioning use as much as possible. One way to avoid A/C use is using ceiling fans. In the winter months, ceiling fans should go clockwise to push rising warm air downward. In the summer, however, the fans should circulate counterclockwise for the opposite effect. It’s usually as easy as flipping a switch in the center of the fan."

Additional personal advice.  Clean the ceiling fan blades off each time you change the rotation. This keeps the fan blade dust from falling on the floor. My failure to do this resulted in a tedious cleanup.