Mail forwarding is much like it sounds: If letters or packages were sent to your former or inactive address, they will be passed along to your current address.

Brush up on your envelope etiquette before sending a letter, postcard or invitation in the mail. Amazon Prime Day Preview: Exclusive early deals on AirFly, retinol and more IE 11 is not supported.

Letter writing may not be all the rage these days, but addressing a letter is something that's good for everyone to know how to do. Jupiterimages/Getty Images In the age of technology, mailing ...