Include nicknames in your contact information
People have all kinds of strategies they use to identify who the contact is. Sometimes names are not enough to identify the person that is talking to you. This is where colorful nicknames come into play since they can serve as better identifiers than a name. Fortunately, iPhones have a new, cool feature that allows you to save nicknames.
There is a section for the first name, one for the last name, and a third one for the nickname. That way, you can keep track of which Donna is your aunt, which is your manicurist, and which one is your babysitter. In addition, you can also set relationships such as parents or siblings for any of your contacts.