The jQuery Tips Everyone Should Know repository is a community-maintained compendium of useful tips, tricks, and best-practices for using the venerable jQuery library effectively. Instead of treating jQuery as a black-box tool, the repo surfaces practical advice: from how to handle events more reliably, to proper ways of manipulating the DOM, optimizing performance (e.g. caching selectors), and dealing with common patterns like AJAX, dynamic elements, error handling, and more. For developers who still maintain or build projects using jQuery — especially those working on older codebases or needing cross-browser compatibility — this resource helps avoid subtle bugs, improve maintainability, and write cleaner, more predictable code.