Thumb Score: +22

Amazon [amazon.com] has 1L Tea Tree Special Shampoo for $32.99 – $6.60 when you ‘clip’ the coupon on product page = $26.39.
Shipping is free with Prime or on $35+ orders.

Savings
Save an extra $6.60 on your first Subscribe and Save order. Limit 1 item. (check and activate [amazon.com])