According to Hallmark, Father’s Day is the 4 th largest card-giving holiday in the United States, and roughly 72 million cards are exchanged every June. Imagine the subconscious, reinforcing impact of ...

Growing up, Pam Mertes never celebrated Father's Day — she didn't know who her father was. But in May, Mertes, now 70, flew to Iowa to hand-deliver the first Father's Day card she'd ever bought.