I am looking for coupons for rock salt (ice melter). I do have a dog, and want something pet friendly for the back porch and sidewalk where she walks. I have looked online for coupons but didn't find much. I don't have a sam's club, target or Walgreens nearby where coupons seems to be good for. Have you found any coupons or even good deals? Ordering online seems out of the question when the rock salt is $4.99 (and because of the weight)- the shipping is like $19.99