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.

24 printable one-minute Christmas challenges with household items: game cards with supplies, rules and how to win, a supply checklist and a team scoreboard. US Letter and A4.

Printable Christmas trivia: 40 true-or-false statements with a fun fact for every answer, 2 answer sheets, answer key and 40 host cards. US Letter and A4.

Printable winter picture bingo: 100 unique 4x4 cards with 32 illustrated winter pictures and names, calling cards and a host checklist. No Christmas pictures. US Letter and A4.