When I need to draft stuff I normally use notepad or a built in text editor to keep a copy of what I want to write and just have the going as it is...

I'm not sure about the drafts page, I think it's more of something we have just kept from SMF and it's main purpose is to find out what your topic was if it gets trashed by a moderator or something (IMO) and sometimes it might be helpful if you want to draft a lot in one go and leave it there to post in a  few hours/days.