Amazon.com has (as an "Add-On" item): Paul Mitchell The Conditioner, Leave-in Conditioner(10.14-oz) on sale for $3.88. *As an "Add-On" item, you must spend at least $25 in order to purchase. Shipping is free w/ the $25+ amount spent.
link: https://www.amazon.com/gp/aw/d/B0…17432&sr=1
To get to $25 minimum, simply pre-order an unreleased video game then cancel video game pre order once the package is officially shipped (however currenty says "Usually ships within 1 to 4 weeks").