When a young woman’s mother’s office got a fax machine, the daughter suggested sending their correspondence by fax instead of using the post office. Although she told her many times that it was a faster and less expensive way to communicate, her mother continued to send her mail by weekly letters. At Christmas, however, her mother showed that she now had a full grasp of the technology. She faxed a $100 bill with the note: “Merry Christmas, Darling. You’re right—it is cheaper to fax than to mail. Love, Mom.”