Categories in Apple Address Book

Apple Address book is great. It is flexible, can be expanded, accessed by external applications and you can categorise your contacts. One gripe many people have is being able to know which category a contact is already in. Well there is even a way to find this out. If you highlight a contact and then hold down the “Option” key on your keyboard you will see the categories the contact can be found in highlighted. This is just another one of the nice features that the clean apple interfaces provide.