Stock up on Purell hand sanitizer for school! This week at Walgreens, eight-ounce bottles are on sale for $2.99. (My store had some bonus 12-ounce bottles for the same price. Look for the bottles that state “Bonus 50% More Free.”) Stack a $1.00 manufacturer coupon from yesterday’s Smart Source insert with a $1.00 Walgreens coupon. Find the Walgreens coupon on page 15 of the new August Savings Book. Even though August is a few days away, the booklet is already valid. Pay $0.99!