Imagine this: a customer visits your site, in search of the right suit for an upcoming wedding. He’s presented with the season’s latest styles, all in his size – all thanks to context from his latest product reviews and other actions on the brand’s website. A week later, he needs shoes to match and tweets at the brand. Someone immediately contacts him with suggestions based on the suit he purchased. After the wedding, he gets an email asking him how everything worked out. Included is a promo code to use and share with friends. He raves about his personalized brand experience and shares their custom promo code – bringing in 20 new customers.