They had the 13 gallon one on sale recently with S&S. I don't recall seeing this 30 gallon deal.
Amazon has the 56-Count 30 Gallon Hefty Drawstring Multipurpose Bags for $14 - 20% off with coupon (click "Clip Coupon & Save") - 5% off with Subscribe & Save (can cancel at any time) = $10 with free shipping. Large capacity and thicker construction for bigger clean up jobs.
Or 15% S&S.
http://www.amazon.com/exec/obidos/ASIN/B00HNW8CXA