Great news! There is an updated CVS Coupon Policy available for 2012. What is great about this new policy is that it clarifies the use of coupons with a uy one get one sale:
Buy One, Get One Free Coupons
Sales tax must be paid for any Buy One, Get One Free coupon offer, if required by applicable state laws. Two coupons may be used on a Buy One, Get One Free promotion as long as it does not exceed the item total
o Ex. Suave Shampoo is on sale for $2.00 Buy One, Get One Free and the customer is purchasing two shampoos; customer may use two coupons for $1.00 each and pay the applicable tax.
Buy One, Get One Free promotions may be combined with Buy One, Get One Free Coupons. Customers are responsible for paying applicable tax
o Ex. Suave Shampoo is on sale for $2.00 BOGO and customer has a MFG coupon for Suave BOGO. Customer will receive both items for free but will need to pay any applicable tax.
So, there you go! You can use one coupon per item with a Buy One Get One Free sale and a BOGO coupon + a BOGO sale to just pay sales tax on your free item.
You can read and get your own copy of this CVS Coupon Policy for 2012 here.