I researched Moss Out for roofs and found that HD in Williston, VT carried the product. Winston found me roaming the aisles and offered to help. He checked inventory to find the exact location, but only the product for driveways was shelved there. He checked again and we headed to another aisle for the roof treatment. The shelf space was empty (although inventory listed 4 in stock) and he searched the overhead storage area as well as products from last season and found none. We then went to the Garden aisle to find Randy who joined the search. No luck. However, he later came to us with an alternative product. I read the instructions and review and decided to purchase it. Both of these employees were persistent in pleasing a customer rather than simply saying "We don't have any." I thanked them, but I also want management to know that in today's world, this is definitely "service beyond the call of duty." Pats on the back to Winston and Randy! Radetta Nemcosky read more