Create Custom Fields in Address Book

If the default Address Book cards don’t have enough fields for all the info you want to collect for your contacts, head to the Template screen in Address Book’s preferences, and click Add Field to add additional fields onto all of your cards. You can also click the little green plus signs to add even more variations of the same type of fields.

Address Book also lets you create your own custom fields. On the same Preferences > Template screen, you can click on most of the field labels and select Custom, where you can name your very own custom fields that will appear on each card.

We’ve already added the custom fields Hours, Referred By, and Rates. You can add even more by choosing Custom from almost any field label.

via Address Book Power Tips | Mac|Life.