Add Yahoo as a preferred source to see more of our stories on Google. Jamie Grill via Getty Images With all the combinations of names out there these days, knowing how to address a letter to a family ...

We may live in an increasingly digital world, but certain things should always be done the "old-fashioned way," if you ask us—one being sending formal (as well as informal) correspondence in the mail.

Snail mail may largely be a thing of the past, but the value of a handwritten letter shouldn't be underestimated. In most cases, an email or text is the preferred mode of communication. After all, ...