longbsvnu

Quick Search And Only One Category Posting support quickly selecting category via search box when there are many categories. Besides, you can use radio button instead of checkbox when you want clients to choose 1 category only. 
Quick Search And Only One Category Posting supports all custom post types and custom taxonomy activated in theme and plugin.

Quick Search Only One Category Posting

Quick Search And Only One Category Posting support quickly selecting category via search box when there are many categories.

Zeno Popovici

Graffino

miguelibero

This plugin adds 1 button to <a href="http://tinymce.moxiecode.com/" rel="nofollow ugc">TinyMCE</a> to clear floating elements. It also adds divs to valid tags so they won’t be deleted if empty.
Originally by <a href="https://wordpress.org/plugins/tinymce-clear-buttons/" rel="ugc">Miguel Ibero</a>.

Clear Floats Button

Adds clear float button to TinyMCE Editor.

Quick Search Only One Category Posting vs Clear Floats Button