Effective data organization and digital hygiene can be achieved by creating a consistent folder hierarchy for different areas of life (e.g., Work, Personal, Projects). Use descriptive file names with dates. Employ tools like FreeFileSync or SyncThing for synchronization and backup. Regularly clean and purge duplicate or unnecessary files. Use search tools like Everything to locate files quickly. Store critical data on multiple devices, and avoid relying solely on cloud services for backups.