Walgreens stock up deal on Cottonelle toilet paper!!!

***Walgreens Scenario***

Cottonelle Toilet Paper 12-packs, $5.00 
Buy 2
Use (2) $0.50/1 Cottonelle Toilet Paper coupon from the 08/12 SmartSource insert
and Use $1/1 Cottonelle Bathroom Tissue (Walgreens coupon, found in stores)
Pay: $7.00 and Receive $2 Register Rewards
Final Cost: $2.50 per 12-pack or $0.21 per roll!!!