We all have favorites. Trustworthy tools and techniques that have proven themselves time and again. From our most-used custom functions to the standards we’ve adopted, it can be difficult to let go of a good friend. Requirements and needs evolve, and so must we. This session shares the tale of how the reign of a long-trusted technique—the virtual list, which dutifully met all the original requirements—came to an end. It was bested by a new best friend after ultimately failing to meet the long-term needs. Enter JSON, stage right.