When I was a hatchling, every Christmas* morning my father would have a notepad and pen and write down every gift I received, as well as who the sender was.
Within a week after New Year's Day, I would have to sit down and write thank-you notes to each and every relative and family friend on his list. This lasted well into my teen years. I did something similar with my own daughters.
Does this still happen in families? Has email replaced the mailed note/letter?
*Birthday too.