James Brains/Business Insider
Summer is winding down, and as the autumn chill rolls in, it's time to consider retiring your window air conditioners for the season. Yet, you shouldn't just put your unit directly in storage where mildew can grow all winter long. First, give your window AC a good clean. Your "next spring self" will thank you.
Regularly cleaning your window AC has many benefits. It can improve your unit's cooling and energy efficiency...