This is what I do:
After I come up with an idea, I’ll start writing it from the beginning.
But when I look at the bottom of the window and I see I have 600 or so characters left to work with, I’ll skip down and write my endpoint. I’ll also write my title and my keyword tags at that point, if I haven’t done it already.
Then I write toward that endpoint. This usually brings me about a hundred characters or more over the 1024 limit. I then go back and see if I can shave off words or rephrase sentences to make it fit and still make sense.
So that’s my Ficlets process. What’s yours?