This article addresses the importance of teaching transformative usability and accessibility concepts through the lens of disability studies in general business and professional communication courses. It argues that when students learn to analyze audiences, include diverse users, and foresee accessibility "before" the final draft because they practice user-centered design, their documents become more accessible for all users and situations. It presents a four-unit course plan that integrates disability studies and usability, including legal requirements. The unit plan advocates considering disability and diverse users and uses at the beginning of the design process.