householding
n.— «Another area of growth in the financial/banking sector is in what’s known as “householding.” The term refers to the concept of offering different product lines to an existing customer. Rather than going through the expense of prospecting new customers, this is a cost effective way of increasing business through extending offerings to existing clientele.» —“VARBusiness 500 Sneak Preview: The Most Lucratrive Vertical” by Jennifer Bosavage ChannelWeb Network June 8, 2007. (source: Double-Tongued Dictionary)