For in-store pickup only, and with stock varying by ZIP code, Advance Auto Parts offers the Road Runner 20-lb. Bag of Ice Melt for $6.29. Better yet, add four bags to your cart for $25.16 and apply coupon "WD10" for final price of $15.16. That's $10 off list, tied with our December mention, and the lowest price we could find. It melts to -15°F.