Purex Crystals are on sale this week at Walgreens, buy one get one free. According to the Walgreens coupon policy, a coupon cannot apply to an item made free by a promotion. Buy four bottles of Purex Crystals and use one printable $3.00/2 coupon. Pay $2.65 per bottle!

Buy One Get One Free through 1/3

Use one $3.00/2Purex Crystals Fragrance Boosters (coupons.com)

Final Price: $2.65 each, when you buy 4