Through 2/8, this 16-Pack Charmin Basic Double Rolls Toilet Paper drops from $9.99 to $6.99 via instant savings at Staples.com. Plus, shipping is free for Staples Rewards Members or with in-store pickup. Better yet, use code 37898 to save $5 off a $25 purchase. To get the best deal, we added 4 packs to our cart, which drops the total from $39.96 to $27.96 to $22.96 after the code. This works out to $0.36 per double roll or $0.18 per single roll, and is the lowest price we could find anywhere. Note: instant savings are applied during the final step of checkout. Sales tax is charged in most states.