WordPress Settings API
A PHP class abstraction that removes all the headaches of the WordPress’ settings API and builds a nice options panel on the fly.
Plugins
WP.com Image Feed Widget
WordPress Image Feed Widget plugin allows feeds with image embeds to be shown in the sidebar of your site, or anywhere widgets are allowed in your theme.
WordPress Media Sortable Filesize
Improve your Media Library functionality by introducing a new column that showcases the sizes of files.
Calendar Date Picker
Calendar date picker, a simple WordPress plugin that does one thing. It adds the jQuery UI Datepicker plugin to the edit screen.
No Password Login
Login Without Password in WordPress? Now you can with this Custom Login extension: No Password Login WordPress.
SEO Media File Renamer Pro
SEO Media File Renamer Pro is a plugin that gives you full control of your uploaded WordPress media files.
WP Upgrade Task Runner
Register custom migration tasks that can be triggered from a dashboard in the admin and run via AJAX.
Stealth Login
Custom Login Stealth Login protects your wp-login.php page from brute force attacks by requiring a authentication key and code in the URL.
Style Pack #3
Custom Login Style Pack #3. Easily activate four different WordPress login styles at the click of a button.
Multisite Featured Image
With the WordPress Multisite Featured Image plugin you can create “featured images” for each site in your network.
Style Pack #1
Use the coupon code “CustomLogin500K” and download Custom Login Style Pack #1 for free, a $10 value. Custom Login Style Pack is a Custom Login Extension.