This document proposes using free gas certificates as a marketing promotion to attract and retain customers during times of high gas prices. It suggests businesses offer certificates valued between $100-$500 to customers for visiting, making appointments, or making purchases. Customers would redeem the certificates by buying $100 or more of gas per month and submitting receipts to receive a gas card worth $25 per month until the certificate is depleted. The promotion benefits businesses by increasing customer loyalty, sales, and profit margins without significant advertising costs, while providing customers relief from high gas prices.