the.com/memorandum
A note to your future self, written because your present self trusts no one.
means A short written record of facts, decisions, or instructions, usually circulated within an organization.
from From Latin memorandum, literally a thing to be remembered, a gerund of memorare, to call to mind.
PluralMemoranda or memorandums, both correct, both pedant-bait.
Short formClipped to memo around the 1880s office boom.
Legal weightA memorandum of understanding binds intentions, rarely courts.