timlinden

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

wpFutureCal

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

Display scheduled/future posts list on your WordPress dashboard. Require WP 2.7 or above.

Future Dashboard Widget

Display scheduled/future posts list on your WordPress dashboard.  Require WP 2.7 or above.

wpFutureCal vs Future Dashboard Widget