your phone contact list

How do you list your spouse's name in your phone? Chong, John Kee Wing? or just John? or Hubby? Darling?

I go with the first type - surname followed by given name. My wife, my parents, my children, my cousins, everyone. I prefer a standard and systematic approach. And I want to avoid sending my wife's contact to another person while referring to her by her nickname. No, don't ask me what it is.