Currently, after performing an action in the admin area, a notification bar appears at the top of the screen informing that the action was either successful or has failed. For example: "Settings saved." "Post draft updated. Preview post" "Post updated. View post" etcetera.
The message appears in code in a div with an ID of "message" and a class of "updated fade":
<div id="message" class="updated fade"><p>Settings saved.</p></div>
This message persists until you either navigate away or perform another action. The persistence is unnecessary, and in my opinion can create a usability issue if the same action is performed twice in a row, leading to confusion ("is this a new message, or the old one?").
I would like to see this notification either disappear after an appropriate length of time, or to include a 'close' button or link (eg. "X" or "close").
After the bar's message has been delivered it serves no purpose, and need not take up screen space. Until this behavior is modified, I welcome any hacks, code, or plugins anyone can share to get rid of this hindrance.