THANK-you cards--heartfelt expressions of gratitude for gifts, services and general kindness--seem to be rare in an age when the Internet continues to reduce human interaction. Although our society has changed greatly over the past century, the _ of thank-you notes has not. While most people would agree that thank-you notes under these circumstances are a necessity, there are still those who forever postpone or are forgetful for unknown reasons. And at no time of the year are thank-you notes more visible (or lacking) than June, the month of graduations, and the beginning of summer parties. "It's a must-do thing. A real thank you does not come by e-mail.  It comes in the mail in an envelope. And what comes out of an envelope is a beautiful thing to touch and to handle and to pass around for everyone to read," said etiquette expert Letitia Baldrige. Don't think for a second that Baldrige is old-fashioned. Handwritten thank-you notes--any handwritten correspondence, for that matter- have taken on an air of extra importance and dignity   in this e-hyper   world. Baldrige remains hopeful that the art may be enjoying a renaissance (,). More than simply obeying rules of etiquette, thank-you cards are a sign of caring. "They're more important now than ever," expert Peter Post says. "You are building a relationship. And part of building that relationship is that you acknowledge when someone has done something nice for you. " "The payoff," Post says, "can be huge. The more we do it, the more it comes back to us, and it's a benefit to us all. It makes our world a little bit nicer place to live in. " Nowadays thank-you cards seem to be rare mainly because   _  .
people think that they are out of fashion it is quicker to say thanks by e-mail the Internet has reduced people's contact people are too busy to remember these things