I'm looking at purchasing some Pergo from Lowes. Right now, the one I want is on sale for 15% off. I'm looking to see if I can score one of those other 10% off coupons...like the ones at the Post office? But I heard they aren't offering them anymore...can anyone confirm this? Also, if the item is already on sale, can you still use the coupon? Thanks...this will save me SERIOUS money!