As sale announcements 9. As a press release 10. To announce an event 11. As an invitation to an open house 12. Postcards are an easy and cost-effective way to reach a market that is confined to a small geographic area.
Most pizza places draw on the people who live within a quarter mile of the shop.
Most McDonalds only reach three quarters of a mile for customers. So when you can reach your market this closely, it pays to use the mail to solicit business. And the cheapest form of direct mail is a postcard. The same holds true for markets which are geographically widespread, but small and highly specialized. Buyers of American Indian artifacts and owners of pot-bellied pigs are good examples.