[O] TODO items which do not appear in the agenda?

[Marcin Borkowski]

Hi all,

I would like to have some TODO items, so that I can mark some tasks as
incomplete; however, I don't want them to appear in the agenda, so that
it's not too cluttered.  Use case:

* Blog
** DONE Blog post idea 1
** TODO Blog post idea 2

I know about (setq org-agenda-todo-list-sublevels nil).  However,
marking the whole "Blog" headline as DONE only so that I don't see the
individual post ideas in my agenda seems hackish.

I also know that I could define my own TODO items and use filtering
(maybe even with a custom agenda command).  Maybe this is the way to go,
but somehow I'd prefer a simple set of TODO keywords
(TODO/DONE/CANCELED, for instance).

So, does the Org hive mind have any other ideas how to implement "TODO
items which do not appear in the agenda"?

TIA

-- 
Marcin Borkowski
http://octd.wmi.amu.edu.pl/en/Marcin_Borkowski
Faculty of Mathematics and Computer Science
Adam Mickiewicz University