When the Johnson County Library (JoCo Library), a midsize suburban public library in Kansas City, Kansas, completely rebuilt its 2,000-plus-page website--one that had remained relatively stable for almost 5 years--the reaction from patrons and staff members was overwhelmingly positive. The web development team at the JoCo Library realized that the secret to patron-centered web design is usability studies. The results from the studies they conducted greatly influenced their development plans and provided the team with baseline data from which to measure improvements. They also realized that quick and dirty "guerrilla" techniques such as card sorts are extremely useful when making any changes that affect the patrons' online experiences. In this article, the author shares several techniques for making websites patron-friendly.