Other blogs I've used have a feature where you have a split post box. You post the first paragraph (or whatever) in the top box, and the remainder of the post in the second box, called something like a post continuation box. That means for the reader that the first paragraph appears on the front page, and there's a link at the bottom that, if you click it, takes you to the full post.
If you write long posts (as I sometimes do) the front page gets VERY long if the whole post appears on it -- that's awkwardly worded, but I hope you understand what I mean.
I wondered if there's a control I can't find that allows that option?