How do I sync contacts between 2 iCloud accounts with iOS 8?
Found this on a forum today.  Suppose a husband and wife want to share contacts.  In Settings &gt; iCloud, the husband adds his account.  In it, he must sync contacts; he can also sync whatever else he wants.

In Settings &gt; iCloud, the wife adds her account.  In it, she cannot sync contacts, but she can sync whatever else she wants.  In Settings &gt; Mail, Contacts, Calendars, she adds her husband's account. In it, the only thing she syncs is contacts.

That's it.