Benefiting From Multiple Marketing Models, Part 2

The most effective customer segmentation I've used include purchase motivations, customer lifetime value (CLTV), lifecycle stages and trigger events.

CLTV identifies the best sources and products to acquire customers (if you capture channels/products of first-time customer purchases), and identifies for retention the 20 percent of customers who generate about 80 percent of your profits (the "80-20 rule").