Marzio Carro

Adds categories and tags functionality for your pages.
This plugin addsthe ‘post_tag’ and the ‘category’ taxonomies, which are the names of the existing taxonomies used for tags and categories the Post type ‘page’.
This enables the categories metabox and the tags metabox in the New or Edit Page interface.
The plugin has no settings, does not alter the database and only uses hooks to 
achieve it’s goal. It works perfectly fine with Multisite installations.
This plugin WILL NOT add any display of categories or tags to your template files.
Plugin’s website: <a href="http://technotes.marziocarro.com/category/wordpress-plugins/" rel="nofollow ugc">http://technotes.marziocarro.com/category/wordpress-plugins/</a>
Author’s website: <a href="http://technotes.marziocarro.com/" rel="nofollow ugc">http://technotes.marziocarro.com/</a>

Category Tag Pages

Wonderful functionality

Yes, it works. Uses very few lines of code and it's a simple and safe solution to have categories and tags in pages.

It works

Adds categories and tags functionality for your pages.

Landon

Originally adapted from <a href="https://wordpress.org/plugins/scheduled-post-trigger/" rel="ugc">Scheduled Post Trigger</a> to be more resource efficient.
Instead of running a query every time a visitor loads your site, Re-trigger Scheduled Posts runs on an hourly schedule to check if any scheduled posts have been missed. If any scheduled posts have been missed Re-trigger Scheduled Posts publishes them immediately.
There is no configuration required for this plugin to work, just install and activate it and it’ll handle the rest.

Re-trigger Scheduled Posts

Originally adapted from Scheduled Post Trigger to be more resource efficient.

Category Tag Pages vs Re-trigger Scheduled Posts