Over the last 5 years we have worked with numerous service sector SMEs helping them to not only solve problems but to also think about how they could solve problem in a Lean way. We have found clients really like the simplicity of the A3 report process that was developed by Toyota. (For some background on what an A3 report is, have a read of the A3 reports blog).
But we believe there are some issues with this paper based system, and we have begun building a simple tool on agileBase that addresses these issues. An early release will be available in a few days. In the meantime, why not read around some of the books and videos referenced in this post?