Encourage Repeat Customers (Periodical Focus)

Options that will not add to the cost of a periodical may include: 
Work with label producer on special label marking, maybe even a different label: clear/white, etc.) and note this in the issue. Can even be done by hand such as an highlighted label, a star sticker, etc.  Additional Tip:  Never use the same marking two years (or subscription spans) in a row.

This section is drawn from http://www.gregathcompany.com/marketingsubscriptions.html