I've developed the habit of using
\\[.5\baselineskip] to indicate
that a part of a bigger argument ended in that line. I found this
quite helpful to structure bigger arguments.
By now, I start questioning myself if that might be bad practice. In particular concerning the readability of documents.
If there is someone here with experience in professional typesetting with well reasoned arguments for, or against this practice, I would be glad to hear it.