Use your custom logo on the default login page, don't forget to edit the snippet...

Customize the "Howdy" message in the admin bar.

Completely disable search on your WordPress website.

Hide the Language Switcher on the default WordPress login screen.

Extend your site's RSS feeds by including featured images in the feed.

Improve safety by hiding the specific login error information.

Disable Emoji's in WordPress to improve your site's performance

Disable comments for all post types, in the admin and the frontend.

Hide the Welcome Panel on the WordPress dashboard for all users.

Add the page slug to the body class for better styling.

Wrap featured images in your theme in links to posts.

Make it easier to edit posts when viewing archives. Or on single pages. If you...

Remove the Website URL field from the Comments form.

Force your users to login only using their username.

Prevent WordPress from automatically creating pingbacks from your own site.