Best practices for organizing study materials for UPSC include creating a systematic filing system, categorizing materials based on subjects or topics. Utilizing digital tools like cloud storage apps can ensure easy access and backup. Maintaining a dedicated study journal allows tracking progress and managing timelines effectively. Regularly updating and reviewing notes keeps information fresh and organized. Additionally, prioritizing core texts and resources while eliminating unnecessary materials saves time. Creating summaries and visual aids can enhance recall and understanding, making study sessions more productive.