The featured entries or " sticky posts " introduced in WordPress 2.7 are a fantastic feature that allows to leave a fixed post at the top of the blog cover in the style of the veteran forums' featured themes, the problem is that they stay there until you edit them the entry to remove that feature.
Indeed, you can highlight an entry from the editor's meta box, in the section called Visibility.
Also, if you forget or decide to fix it later, you can highlight it from the window of entries, choosing the quick edition and checking the box to the effect.
What happens is that it is ta utility is supposed to be used for a certain time, for special announcements or important articles, but there is no way for WordPress to know when it should stop being fixed on the cover .
And right in that Expire sticky a simple but effective plugin that does just what WordPress is missing: define an expiration date of the highlighted entries .
Yes, intuitive in its use is not much, it does not even help the plugin page in WordPress.org, but I'll explain it to you, because it's not complicated either.
Nothing else to install it there is nothing to configure, nor page of adjustments or anything similar. The only thing that the plugin does is to add a new element to the goal post box of the ticket editor for to be able to set the expiration date of the highlighted entry . When you click on the box, a calendar is displayed, you choose the date in which it will stop being fixed automatically and you save the changes. Nothing more and nothing less.
The downside is that does not add the same box to the quick edit of the ticket window but if you think about it it is not necessary because the simple idea is that when publishing the fixes, you define the date on which " takes off " from the cover and pushing.
I think it would be a fantastic functionality to include by default in WordPress, maybe better located, if possible just below where you mark as the entrance, but hey, meanwhile there it is, it works wonders and pure simplicity is wonderful, like all simple and effective things.