[Orgmode] suggestion: automatically recording entry creation date

[Ilya Shlyakhter]

A frequently-needed task is to find recently created entries.  Right
now I do this by manually pasting a date into each entry,
and using the timeline agenda.
Maybe, there are better ways?  E.g. have the option to automatically
record a property, "Creation-date", when an entry is created.
There would be much clutter if every entry had a :PROPERTIES: line.
But maybe there could be an option to hide the :PROPERTIES:
lines completely, unless it contained some user-defined properties.

Or, creation date could be stored as a text property, to avoid
clutter, for long-running emacs sessions.   But it would be lost when
the file is closed.
Maybe at file-closing time it could be converted to a normal property
in the :PROPERTIES: drawer.

Or maybe there are other options?

ilya