just got the email. it has a link for coupon "$5 off your next purchase of $50 or more"
its a one time use coupon with barcode
t and c say "This offer is valid 04/22/2013 through 05/12/2013, and is redeemable for a $5.00 discount on a single receipt in-store purchase of $50.00 or more at all U.S. The Home DepotŪ stores. This offer cannot be combined with any other discount, offer, promotion or special incentive program. Cash value 1/20th of 1 cent. See store for further details"