Using WordPress Queue Posts plugin you can queue your blog posts and pages for later publishing with just press of a button. The plugin simply allows you to place new posts in a queue for further publication at a specified time interval.
Using Backup Scheduler plugin you can easily schedule backups of your entire website or select folders, files and database to backup. The plugin is compatible with both single and multisite installations. If you are running a multisite network then you can take backup of entire network and allow your subsite owners to take backup of their site.