One of the most amazing features in Google Analytics is "Multiple Custom Variables (MCV)," with which we can now track visitors according to any number of interactions and behaviors on the site. This post walk you through a example that you can apply to your own business.
"Say you've an online store where you sell clothes for men, women and kids. You're not satisfied with aggregate data, so you go to a web analyst and ask them to segment deep! What you want is to have more visibility into shopping experience based on: products & departments of interest; departments: men, women, etc.; categories: athletic, suits, shirts, etc.; special sections: wedding registry, wish list, etc.; buyers & non-buyers; site language selection: English, Spanish, etc. Your request shall be answered using the powers of MCV! Here's a brief illustration of how it works:
MVC feature allows us to label visitors at three levels, "visitor", "session" and "page". Note: none of the data from MCV personally identifies a visitor - these're totally anonymous labels:
More Info: The Power of Multiple Custom Variables