Its a basic and very simple little thing, printing address labels. It happens to be something that many people miss on their Macs, however. You can customise the look and feel and add a logo or icon depending on the holiday.
Most label packs will have a Avery number or equivalent which means you do not need to layout etc just type in the number and away you go. 9-5 Mac has posted a nice brief article on how to nail this time saving task!