If something happens tomorrow, could someone else find the insurance policy, reach your doctor, cancel the phone contract and feed the dog? Most of that lives in one person's head. This is where you put it on paper.
It is an organiser, not a legal document. It records where things are and under which number — not passwords, not a will, not legal advice. The first page of the binder says so, and says what to keep in a safe or with a notary instead.
Seventeen pages, undated, in A4 and US Letter. Fill in what applies, skip the rest, and keep it in a ring binder somewhere your family knows to look.
SpreadsheetZero-based budgeting for Excel & Google Sheets: every euro gets a job and the sheet does the adding up.
SpreadsheetSnowball and avalanche side by side — it tells you which method is cheaper for your debts.
BinderOne binder for everything that runs the house. Undated — print once, use for years.