The Walgreens 2014 Black Friday ad leaked last week! This year at Walgreens, the Black Friday deals will last for three days: Thursday, Friday and Saturday. Buy Crest 3D White toothpaste, on sale for $3.00, and earn a $3.00 Register Reward. (A Register Reward is a coupon that prints at checkout. It is good for store credit on a future purchase at Walgreens.) Use a $1.00 newspaper coupon to make this deal a moneymaker!