Starting 4/19 CVS will be running a Tresemme ecb sale, 3/$10 get $5 ecb wyb 3 (limit 2)
Use $1/1 printable (this is a pdf coupon from marie claire. Right click on the coupon to save it to your computer so you can shrink it down to fit on your paper)

Stack with $4/$20 beauty coupon (I received mine in my email today. If you didn't get one, CVS has said this coupon can be shared since it is not customer specific! Thanks to Surviving the stores for sharing this tip).
Buy (6) = $20 minus $4 coupon = $16 minus (6) $1 coupons = $10 earn $10 ecbs = Free