3. Hang up Blackout or Heat Blocking Curtains
These thick curtains are made with the specific intention of blocking sunlight, which makes them a natural choice to help keep your house cooler in the summer. Make sure to leave them closed during the day to prevent the accumulation of inside heat from the sun’s rays. As an added bonus, this layer of protection between you and your windows will also minimize energy loss from your fans and air conditioner. In other words, this is a truly fantastic way to save money and keep your house cool.