http://business.yourdictionary.com/cross-selling, 25.10.2010)business is defined as ‚Promoting goods or services that are related to the product a customer has expressed an interest in buying. For example, a waiter or waitress might ask if a customer would like an appetizer with a dinner order.'(
Don’t you think it’s so easy as well?! Why isn’t is used as much as it should? Or is it used and we haven’t paid enough attention?