Daily, weekly, or after every work session: suitable backup frequency depends on how quickly valuable information changes. A rarely updated archive and a daily working project need different arrangements. Rather than choosing a schedule by habit, ask how much new work you could tolerate losing. That turns frequency into a concrete, testable requirement.
Look at change, not just volume
A large photo archive may remain unchanged for weeks, while a small text file can gain hours of valuable work in one morning. File size alone says little about the required frequency. Group collections by change rate and importance. Active projects may benefit from frequent automatic backups plus deliberately retained milestones.
For infrequently changed material, backing up after new content arrives can be appropriate. Importing a memory card provides a clear trigger. Do not erase the card while waiting for a future monthly routine if the new photographs would meanwhile exist in only one location.
Match the schedule to real use
A nightly backup does little if the laptop is shut down in a cabinet every night. Choose a time or trigger when power and the destination are genuinely available. Check how missed jobs are retried. A scheduled task matters only when it regularly completes successfully.
For external drives, a reminder after the final work session may be more realistic than a fixed calendar time. Online backup completion depends on connection and data volume. Check whether new files are still waiting to upload before considering a session fully protected.
Plan frequency and retention together
Very frequent backups do not solve every problem. If older versions are immediately replaced, an unnoticed error may still affect every available state. Also decide how far back recovery needs to reach. Test that capability using an older sample.
Review the schedule when your work changes. A new project with substantial daily revisions may need a different arrangement from the previous personal collection. Track the last successful completion and investigate recurring failures. A simpler reliably executed plan is better than an aggressive schedule whose errors are continually ignored.