Internships are popular among many undergraduates, partly because they provide job experience and make it easier to get hired after graduation. Studies have found that employers place more weight on experience, including internships, than on academic credentials when evaluating a recent graduate for employment. In this article the authors report on a two-part study the authors conducted at Bennington and Carleton Colleges. Their goal was to discover what students should be learning during internships that supports later career success and how career centers can best facilitate this learning. The authors found that supervisors care most about general transferable skills. Although supervisors value writing and critical thinking, things like work ethic and taking direction receive more attention in their feedback. Many students do not initially recognize the need to improve in these areas, but the authors have developed several ways of increasing their awareness, including a rubric and guided reflection prompts.