A bad title, I apologise.
I'd like one of two things. Ideally, I'd like the 'excerpt' field on the Add Post page to be plaintext, as in non-HTML, so that one doesn't need to add a
to begin a new line.
If that's not possible, I'd like a standard excerpt, so that when one loads the Add Post page, it's already filled in with a pre-written paragraph.
Are either of thigns things possible, with or without plugins?