Add Yahoo as a preferred source to see more of our stories on Google. In an age of text messages and emails, it might seem a bit dated to drop a letter in the mailbox. But there are still plenty of ...

Add Yahoo as a preferred source to see more of our stories on Google. Have you ever put a check or card in an envelope, then flipped it over and realized you're not 100 percent sure what you need to ...

Even in the age of digital correspondence, businesses use postal mail for many things. Everything from billing invoices to marketing letters are still regularly used every day by businesses. Making ...