Whenever you are talking to your current clients, try to keep track of the conversation. The questions they ask and the answers you give are valuable content for your blog. Scale your message.
Whether it is in person, on the phone or via email, there are other clients and potential clients that want your input on those topics as well. Why not be proactive and make them available on your website, blog and social media outlets? Not only will it help attract people to your business, it will also save you from repeating yourself so much.