Visit Walgreens this week for a fantastic deal on L’Oreal Excellence and Preference hair color! Boxes of L’Oreal hair color are on sale for $8.00. Buy at least two to get the $8.00 sale price. Stack two $3.00 printable L’Oreal coupons with a $5.00/2 store coupon from page 23 of the Walgreens October Savings Book. (What is coupon stacking?) Find the monthly coupon booklet in the front of the store by the weekly ads. Pay just $2.50 per box of hair color.