Next week at Walgreens, get a nice deal on Crest 3D White toothpaste. Twin packs will be on sale for $6.99. Buy two and receive a $6.00 Register Reward at checkout, which can be used for store credit on a future Walgreens transaction. Print two high-value $2.00 Crest coupons now and save them for the promotion. (The coupon is set to disappear before the sale begins.) The final price is $1.00 per toothpaste!