WP plugin: Kinderlose
Kinderlose is not just an unusually-named* WordPress 2.3 plugin, but one with a very simple mission (which is good, because it’s a very small plugin): It removes posts from any possible child categories under a (presumed parent) category archive.
Inspired by Michael D. “mdawaffe” Adams’ Just One Category and Rich Hamilton’s No SubCats plugins, Kinderlose came into being because there didn’t seem to be a similar solution supported under WordPress 2.3. Well, now there is.
Installation and use is simple: Download kinderlose.php, upload the file to your wp-content/plugins/ directory, and activate Kinderlose under Plugins. That’s it. Kinderlose will know what to do from there.
Note: Kinderlose for you non-German speakers out there (it’s ok, I barely speak it myself) means “childless” — which pretty much describes the purpose for the plugin, don’t you think? Hey, better than calling it Kindesmorde…