Have you ever wanted to delete the entire contents of a WordPress installation to the beast? . I often, especially in test sites of which use for courses and stuff.
And I always lose a lot of time doing, well, so far.
Because since I've found a plugin called WP Empty Blog / Website and not use more than one click to delete the entire contents of a WordPress, that is ...
Attachments (images, videos, etc.)
Simply install and activate the plugin, you go through " Settings -> Empty WP Blog "and you click on the only button there , and that's it. Of course, make sure before you give, it can not be reversed.
These things are the ones I like, simple and effective.