Home Depot is having a promotion where you can bring in old or broken Christmas lights in exchange for a $3 coupon (up to 5 per household) good on energy efficient LED lights, between Nov 5-15. Go here for more details.
Did you know that Home Depot also accepts competitor's coupons?! That means that you can use those $5/$25 True Value coupons found in current magazine issues for even more savings! Thanks, Freebies4Mom!