Someone who sells phone systems should jump on that oppportunity. The future bride might be interested in including chocolate favors at the reception. There's a lot of opportunity in those pages. There are many business boosters in your industry. Computer consultants offer maintenance contracts and new software products in addition to their repair services.
Image consultants offer additional products such as scarves, books and make-up to their customers.
It all adds up to increased revenues. Look at the other ads in the section where you may be placing your ads. Call the companies who are already advertising there to find out how their ads are pulling. While you're on the phone with these folks, do some prospecting to find out whether these companies are in need of your products or services. We're not talking Harvard here, but we bet there's a good chance that a community college or adult education program in your area can benefit from your expertise.