Smarter Navigation is a free WordPress plugin designed to improve the way users navigate through posts. This tool addresses a common issue in WordPress: displaying previous and next post links relevant to the context from which a user arrives. By utilizing cookies, the plugin tracks the user's entry point—be it a category, tag, or author archive—and dynamically generates navigation links based on that specific context.

This functionality is achieved through two key functions: previous_post_smart() and next_post_smart(). These functions ensure that when a user views a single post, the navigation links presented correspond to the same category or archive, thus enhancing the user experience. This targeted navigation makes it easier for visitors to explore related content without losing track of their browsing context.