Buy 2 Cottonelle Toilet Paper 12-packs at $5 each (works on the Blue and Purple packages only)
Use 2 $0.50/1 Cottonelle Toilet Paper coupon from the 08/12 SmartSource insert
Stack with $1/1 Cottonelle Bathroom Tissue Walgreens coupon
Spend $7 plus tax out of pocket, Get $2 Register Rewards back
$2.50 per 12-pack after coupons and Register Rewards = $0.21 per roll