If I start writing an answer and then leave the page, when I next return to that question, my partially written answer is saved in the answer field. This is convenient as it allows me to return to answers in progress.
However, if I go away long enough that the question scrolls of the front page, I then have to dig around to find it again. I propose that there be a tab in my profile page, visible only to me, which links to answer drafts that I have not submitted.
I realize that there are work-arounds: I could use the "favorite" star to tag questions that I have left drafts in, or e-mail myself links to those questions. But I think that a simple page where I can see my answers in progress would be more convenient.