We've written several times before about how you can save water and energy in your bathroom (read here for toilet tips or here for shower ideas), but today we want to talk about your fan. After you shower, using your bathroom fan to remove heat and humidity can be an easy way to keep your energy costs down (especially if the fan vents to the outside of your home). A quick flip of the switch can keep things cooler, just as the weather heats up. For many more home energy tips (to save money) for warm weather, click here.