How to allow users to decide if they publish or unpublish their own blogs?

I just want users to determine if their blogs should be published. When I grant users to "administer nodes", they have other permissions like "Promoted to front page". And worse, they have the power to create any kind of nodes, instead of just blogs!

I just want to grant users to publish or unpublish their blogs. How can I do that?

Really appreciate any suggestions!