At a conference in Dallas not long ago, a graphic designer from Kentucky and I sat down at a table where people were exchanging business cards. I looked at his logo, and he studied the name on my card.
"I know that logo. We've been in touch in the past," I said.
"That's right. I know your name," he said.
Although we weren't able to pinpoint when or why we'd exchanged mail previously, we guessed it had been at least five years back. Neither one of us has an extraordin...