Visit Walmart for a deal on Hefty slider bags! Use a $1.50 coupon from the 8/2 Red Plum insert. A 20-count box of Hefty bags is $1.98. I bought two, used the coupon, and paid $1.23 each.
Walmart price matches! If you find a lower advertised price on an identical product, tell a cashier, and they'll match it. For more information, read the Walmart coupon policy here.