Free CFLs from Duke Energy

Duke Energy is offering its customers 15 free compact florescent light bulbs. (Yes, you must be a Duke customer.) Call Duke Energy at 1-800-943-7585, press option 1, and follow the prompts. You will be asked to supply your account number or your SSN. Based on my wife's experience, the process takes less than a minute. I don't know how long the offer is in effect.