This plugin adds the functionality to add sticky notes into the dashboard.
Allows you to add notes to plugins.
Adds a new metabox into the admin sidebar on Posts, Pages and WooCommerce Products (if activated) for making notes.
A Simple Multiple Note System for WordPress
Plugin Memorandum makes you can write memo or notes for each plugin in the Plugins page.
This plug-in add postit or help to posts/pages. It can also provide global memopad to users.