Recently we've observed a phenomenon among long-married couples. As the number of years together increases, so does the likelihood that they end up buying one another the exact same greeting cards.

Now none of this is scientific, but if the internet is any indication, this kind of thing happens all the time. And there's something really freakin' sweet about two people being so in-sync that of all the places to buy cards and of all the cards to choose from, they end up picking the same one.

Some proof that this is, indeed, a "thing":

Has this happened to you or someone you know? If so, tell us about it in the comments.