Option to Delete Last Post

I don’t know if anyone has this problem, but I occaisionally, maybe more than occaisionally end up accidentally posting a second time right after I make a post. When I do this, I end up editing the second post to say that i accidentally posted and that the post can be deleted. I think it would be helpful to have a short period of time, right after you post, to delete it, kind of like many news blog sites do. Not sure if anyone else agrees.