The best backup system is one that runs completely on its own, since a backup you have to remember to start is a backup that eventually gets skipped.

Set It Once

Enable automatic cloud backup for phones through the built-in settings, and set computers to back up continuously to either a cloud service or an external drive using the operating system’s built-in backup tool.

Confirm It Is Actually Working

After setup, check a few weeks later that recent files actually appear in the backup, rather than assuming it is working silently in the background. A backup that quietly failed months ago is often worse than having no backup at all, since it creates false confidence.

Once confirmed working, this becomes one of the few tech habits that requires zero ongoing effort while providing real protection.