Delete Multiple Documents at once

I really need to be able to do this, I don't have time to delete 1 document at a time. After the document has been completed I do not need any other record of it and as the dashboard is not that efficient to use, I need to clear as many documents I can in order to work with the ones I do need.  I am serious about this feature, it seems simple enough to be able to incorporate so I can't see why this is not an option/feature.