Problem: I have several groupings of posts, with each group assigned to a different child category of a parent category. On one page, I need to show each child category name and a list of the posts from that group. The child categories need to sorted in post date order, e.g. the earliest post date for each child category is used to determine the order the categories are shown in. And, of course, this output needs to dynamically update as I add new child categories and/or posts to each category.
I can accomplish this manually by using the "List category posts" plugin and just typing in the category names, but I'd like automate this if possible. Any ideas or suggestions?