I love simple retail ideas. I discovered this one in Canada. A store has a policy of if they see a male and female partner shopping and the women looks at product, but fails to purchase of simply taking a company business card and passing it discretely to the male partner as a Hint card. On the card they mention their partner was showing interest in a specific product and if they wanted to purchase it as a gift their partner would be thrilled. A simple system that shows the sales team are on the ball and are watching customers. Plus the male partner can become the hero.