Client side re-targeting has two pieces to it: a "segment" code placed on the product page (a marker showing you have interest in this particular product) and a

Client side re-targeting has two pieces to it: a "segment" code placed on the product page (a marker showing you have interest in this particular product) and a "burn" code placed on the conversion page (that removes the previous marker, so they can stop showing you ads for this product once you bought it). One could add the "burn" code every time the "segment" code is detected. On some networks that may even result in an affiliate payout.