While working on a code snipped for a recent question, I found that due to the self-referential nature of the answer, it would have been helpful to have a sandbox or test area for answers that aren't quite ready to be published. (The gist of the code golf question was to create an answer that returned some basic SE statistics about itself.)
Previewing before posting had limitations since there was not an answer ID to test against. To avoid confusion, I wouldn't want to post an answer-in-progress on the original question, but the question sandbox didn't seem like the appropriate place either.
Is there a temporary work area or thread that I'm missing, or should one be started? I realize that most questions would not benefit much from this, and I'm having trouble thinking up with other situations where this feature would be needed. As an alternative, if there is a way to flag an answer as incubating or unpublished, that would be preferable.