Brandon Kraft

Dojo Digital

This plugin allows the author of a post or page to hide the title and it’s containing HTML element from the single view ( is_singular() ).

Hide Title

Allows authors to hide the title on single pages and posts via the edit post screen.

Lee Willis

Always shows the admin bar if the user has previously logged in to the site. 
Non logged in users will see the bar in the normal place, complete with a login link.
Note: This plugin is no longer supported. The plugin is available for forking and contribution over on <a href="https://github.com/ademti-software/always-show-admin-bar/" rel="nofollow ugc">GitHub</a>.

Always Show Admin Bar

I had to debug a website and the premium theme was hidding the admin bar which I wanted to use for Debug Bar and Theme Template Debugger.

This plugin solve this issue !

Very useful !

Always shows the admin bar if the user has previously logged in to the site.

Hide Title vs Always Show Admin Bar