Many people think they intuitively know what and how to test. The truth is that anybody can conduct disorganized testing. Effective test case design can be intellectually challenging and even intriguing. While test case design is complicated by deadlines, incomplete information, and shifting requirements, it is also an opportunity to excel. This workshop addresses the question, how do I utilize use cases to develop an effective set of test cases? This article details small group instruction and real-life testing scenarios to answer that question.