The executive director the Wisconsin Citizens Utility Board says in observance of Earth Day think about ways you can improve energy efficiency in your home. CUB director Tom Content says LED lighting is one of the easiest and most cost-effective ways to save money on your utility bill. Content says all month long Focus on Energy is offering a great deal on smart thermostats. Content says weatherize your home. He says heating, cooling, and annual equipment maintenance can save hundreds of dollars a year. Content told AM 1170s Between the Lines program we’ve come a long way since Wisconsin US Senator Gaylord Nelson founded first Earth Day more than a half century ago.