Starting on Sunday, bottles of Purex laundry detergent will be buy two get two free at Walgreens. Buy four, and make sure at least one of them is Purex Plus Clorox 2 Detergent. Redeem a $1.00 Ibotta offer and a $1.00 SavingStar offer. Make sure to clip the SavingStar offer now because it could run out before Sunday. Once it’s clipped to your account, though, it doesn’t expire until 9/14. The final price will be $2.50 per Purex bottle!