Picture postcards are sold in all kinds of vacation destinations. They usually have pictures of the area or its attractions and sometimes bear slogans like “Wish you were here.” These are for sending to your friends or family while you are on vacation. Of course, you can find postcards with pictures of almost anything on them. Usually the picture is horizontal. On the back, a vertical line divides the postcard. You write your message on the left and your friend’s address on the right. Put a stamp above the address. Do you send postcards when on vacation? For seasonal greetings?