This 16-Pack Double Rolls Charmin Toilet Paper drops from $9.99 to $7.99 via instant savings at Staples.com. Plus, shipping is free for Staples Rewards Members or with in-store pickup. Even better, through 8/31 get a $5 Staples Gift Card with any purchase over $20 of P&G products. To get the best deal, we recommend buying three packages for a total of $23.97, which drops to a net price of $18.97 after the gift card. This works out to $0.40 per double roll, which is the lowest price we've ever seen for this brand. Even without the gift card promo, this is a great price. Note: instant savings are applied during the final step of checkout. Sales tax is charged in most states.