timlinden

<p>Remembering to post every day, and which days you already posted, is super easy with this plugin.<br />
It shows you a calendar with days red when there isn’t a post, and days green when there is. Green<br />
days you can hover over and see the title of the post, and click to edit the post for that day.</p>


wpFutureCal

A simple calendar that displays when you edit posts, showing which days you have posted on.

ShinichiN

<p>This plugin adds a widget to display furture scheduled posts list on your sidebar. You can specify how many posts to be listed.</p>
<ul>
<li><a href="https://github.com/ShinichiNishikawa/Widget-of-the-Future" rel="nofollow ugc">GitHub</a></li>
<li><a href="http://nskw-style.com/2013/wordpress/plugin-downloads/Widget-of-the-Future.html" rel="nofollow ugc">Plugin Homepage</a></li>
</ul>
<h4>Title and post counts</h4>
<p>In the widget page, you can specify the title and the number of posts.</p>


Future Widget

This plugin adds a widget to display furture scheduled posts list on your sidebar. You can specify how many posts to be listed.

wpFutureCal vs Future Widget