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Haven't gotten an LG&E Energy Audit yet--what are you waiting for? You can sign up at http://www.eon-us.com/rsc/lge/dsm_home_audit_application.asp or call 1-800-251-7808 to schedule an appointment. The audit costs $15 but pays for itself quickly if you make the recommended improvements, which range from ceiling fan adjustment and new lightbulbs to installing more insulation. 

Your friendly LG&E representative will also give you four free compact flourescent lightbulbs and install a free energy efficient showerhead (if you don't already have one). Cha-ching! 

And here's the link for LG&E Green Energy again, http://www.eon-us.com/green/default.asp, if you want to go all out.