With the assistance of Craig Cook, this personal Weblog’s category pages; daily, monthly, and weekly archives (which you may view by hacking the URL, and yes, I expect that you do have enough skills to do so); and search results are now intelligently and compactly presented. You’ll see only excerpts in all such results – save for browsing the photo categories, in which case you see the whole post, which usually is equal to the photo by itself.
I have also enacted a rather poor attempt to map <!--more--> in my source code to an allegedly more accessible continuation link in each post. I remain skeptical about the need for such a thing, and I would prefer to add full HTML markup, which WordPress seems unwilling to permit.
Further improvements are upcoming.