In case you lack a good internetconnection at times, and you still need to touch up that blog article or add the newest photos from the last event to your gallery, then Joomla Remote is probably a good solution for you. This small piece of software allows you to manage your site offline and then sync it up once you go online.
It comes packed with many features that help you managing your website without the loading times between changing screens. Give it a try, its free.
