Staples offers the Glad ForceFlex 13-Gallon Indoor Trash Bag 100-Count Mega Pack, model no. 70427, for $11.99. Opt for in-store pickup to avoid the $5.99 shipping fee. That's tied with our mention from September and $4 under what you'd expect to pay in other local stores. These bags feature drawstrings and a patented stretching, tear-resistant construction.