Research your jurisdiction’s requirements for taxes, warranties, employment, and professional certifications. Keep definitive records, not drafts. Label each kept item with its planned deletion date, and store it in an encrypted, clearly named folder. When the date arrives, reassess and delete confidently. If you collaborate, document shared retention decisions so teammates understand why some items persist. A little structure avoids last-minute panic, and it protects you against both regulatory gaps and the opposite risk of unnecessary, indefinite preservation.
Backups preserve availability but can secretly preserve risk. Use encrypted backups with retention limits so removed files genuinely disappear over time. Prefer incremental snapshots with rolling windows, not immortal archives. Test restores to ensure your plan works under pressure. Keep sensitive exports in separate containers with their own schedules. Most importantly, align backup retention with your primary deletion policies; otherwise, backups become a museum of everything you tried to forget. Good backups are faithful and forgetful, not clingy and indiscriminate.