The 215 Guys

Scheduled Post Reminder Notifications is a simple yet powerful plugin that helps you stay on top of your scheduled posts. It sends reminders via email or dashboard notifications before your posts are published, ensuring that you never miss an important content update.
Features
<ul>
<li>Customizable Reminder Timing: Set how long before the scheduled time you want to receive a reminder (in minutes).</li>
<li>Flexible Notification Methods: Choose between email notifications or WordPress dashboard notifications.</li>
<li>User-friendly Settings: Easily configure your preferences from a simple settings page.</li>
</ul>
Use Cases
<ul>
<li>Bloggers and Content Creators: Get notified in advance to prepare promotional activities for your upcoming posts.</li>
<li>Content Teams: Ensure all team members are aware of the publishing schedule and ready for action.</li>
<li>Businesses: Maintain a consistent content schedule by getting timely reminders for all your scheduled posts.</li>
<li>Freelancers and Agencies: Improve client satisfaction by reminding clients of upcoming content for approval.</li>
</ul>

Scheduled Post Reminder Notifications

Sends timely reminders via email or dashboard notifications for your scheduled posts, ensuring you never miss an important content update.

nickohrn

Lorelle, of Lorelle on WordPress, requested a simple reminder plugin that could be used from the administration 
panel within WordPress. I decided to deliver with this little piece of code.
Your reminders are input through the WordPress administration interface, and you can format them in a variety 
of ways. You can change the text color, background color, and make the text strong, emphasized, and underlined. 
Reminders are stored as posts in the database.
When displaying the reminders, each reminder has a checkbox that you can check to mark that you’ve completed 
that item. The item will be dimmed when the checkbox is checked and undimmed when unchecked. Use this feature 
to make sure that you’ve completed everything that you should have. Checked reminders will stay checked after saving 
a post.

Pre-Publish Reminders

This plugin displays a configurable list of reminders on the post administration screen.

Scheduled Post Reminder Notifications vs Pre-Publish Reminders