I needed to disable posting on a site today and wanted to quickly notify all users that there was something going on when they logged in. I wrote a quick and dirty function that threw a notice on every wp-admin page. It worked so well I turned it into a simple plugin that i’ll use again. These are the no brainer time savers that seem stupid until you do it a few times, then you’re glad you can grab some pre-existing chunk of code.
Download DashMessage Plugin