12-Packs of Cottonelle toilet paper are on sale for $4.49 at Walgreens. Stack a $1.00 printable Cottonelle coupon with a $1.00 Walgreens coupon from page 7 of the Monthly Saving Book. The final price will be $0.01 per square foot!

Use one $1.00/1 Cottonelle Toilet Paper 6 ct or larger (coupons.com)

and use one $1.00/1 Cottonelle Bath Tissue, 12 ct from Walgreens December Savings Book (exp 12/31)

Final Price: $2.49, or $0.21 per roll, or $0.01 per square foot