Start with inventory: email, banking portals, pensions, subscriptions, cloud drives, and social profiles. For each, note whether someone will need access, closure, or a preserved copy — not every account deserves the same treatment.
Next, name humans: who can confirm identity, who understands your values, and who has bandwidth under stress. Software helps express rules; people still execute them.
Finally, choose a durable home for instructions and files. A checklist is useless if it lives only in a note app you never open again.
Pair paper and digital where law requires
Wills, trusts, and probate rules vary by country. Digital tools complement — they rarely replace — documents your jurisdiction recognizes. When in doubt, ask a solicitor.