How do I sync contacts between 2 iCloud accounts with iOS 8?

I have one iCloud account, and my wife has another. I have an iPhone, and so does she. It's easy to share calendars in iOS 8, and I'd like to do something similar with our contacts. How can we keep our contacts synchronized between the two accounts/devices?

Solution 1:

Found this on a forum today. Suppose a husband and wife want to share contacts. In Settings > iCloud, the husband adds his account. In it, he must sync contacts; he can also sync whatever else he wants.

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

That's it.