♪ you are my sunshine ♪ my only sunshine ♪ you makes me happy ♪ when skies are grey ♪ you'll never know, dear ♪ how much i love you ♪ please don't take my sunshine away ♪ [ male announcer ] as long as there are babies, they'll be chevy's to bring them home. ♪ a lot of us use cell phones. a lot of us. jack cafferty is here with "the cafferty file." jack? >> not all of us, however. the year we stop talking to one