WPMU DEV - WPMU offers WordPress Plugins, WordPress Themes, WordPress Multisite and BuddyPress Plugins and Themes.
PackMojo - Create custom packaging in 3D and order in low volume
Firefox Developer Edition - Built for those who build the Web. The only browser made for developers.
Pakible - Custom packaging, made simple. 10 boxes for $10
MAMP - MAMP is the abbreviation for Macintosh, Apache, MySQL, and PHP. It is a reliable application with its four components that allows you to access the local PHP server as well as the database server (SQL).
Die Cut Templates - Generate custom professional packaging templates in seconds.