Staples offers the Charmin Basic Toilet Paper Double Roll 20-Pack for $7.99. Better yet, add four (80 rolls total) to your cart and apply coupon code "76791" to cut the price to $25.57. Plus, Staples Rewards members bag free shipping. (Not a member? It's free to join.) That's the lowest total price we could find for this quantity by $19. (For further comparison, we saw 60 rolls for $22 in January.) Each 1-ply roll includes 264 sheets. Deal ends May 10.