Guerrilla Doug Hannan came up with a promotional offer that helps others to become Guerrillas themselves. He was looking for ways to improve response to a newsletter for North Star T-Shirts in Kimberley, British Columbia, when he came up with an offer for a reverse phone directory.

Response to the offer was tremendous. Many readers reported using the reverse directory to confirm information before returning unclear phone messages. Doug says the easiest way create a reverse directory is by using one of the many popular CD ROM phone books, exporting it, sorting on phone number, and then printing.