For this deal to work, you have to be able to go to the Walgreens store, since you need to use the app. Also, you need to have not used any of the coupons for Crest ($2 + $4).
Here are the directions:
1. Make a new account on Walgreens and sign up for the free balance rewards member. (If you did not use any of the 2 coupons, you won't need to make a new account).
2. Download the Walgreens app on IOS or android.
3. Sign in into your Walgreens account and clip both the $2 and $4 coupon.
4. Go to your local Walgreens store and pick 3 of the toothpastes. Make sure to scan your walgreens card in checkout. The total will take 1 item for free and apply both the $2 and $4 coupon.
My store had these for $3.99 each, so it was more expensive for me. It could even be cheaper for you. Enjoy everyone!
*Note: For this deal to work, you must go in store and use the Walgreens app with your Walgreens account signed up for Balance Rewards with clipped coupons. (Both coupons can only be redeemed once per account)
**Note 2: The $2 coupon expires in 2 days, so this deal will technically expire in 2 days.
Here is an image link for proof: