There always seems to be a discussion on how to handle “plus one” invites. There are several schools of thought:
No Plus One’s…this means that you only invite the people you want there, and no one else
Plus One’s for Significant Others…this means that plus one’s are only granted to friends’ spouses, fiancés, or long term (over 1 year) significant others. The plus is that only people who are important to you or important to loved ones are there (and in your pictures)
Plus One’s for Fun…this means that you invite plus one’s for those who may not enjoy the event without one, for example a friend of yours who will not know other people at the event is allowed a plus one to help him/her enjoy the event with a companion. This loosens the guest list slightly, allowing someone who might not necessarily be a close friend to join in.
Plus One’s for All…that’s right, everyone get’s one! This makes your event more of a social mixer with a few new faces.