Thinking of switching to Wordpress, which lets you split a post: when you think the post is turning into War & Peace or Tristram Shandy or Don Quixote or all three you can insert a Read More tag. Readers who do not share your enthusiasm for W&PTSDQ can skip happily on to the next post.
Wordpress will not let you customise templates. Bastards. BASTARDS. While checking out Wordpress, though, I came across this blog on Prisons of the World. Fabelhaft.