The field_extract module provides a couple of easy-to-use functions that make extracting data from entity fields much easier - as a developer you don't have to worry about languages and deltas, you just make the call.
Displays system messages in fully themeable colored horizontal bars on top of the page, similar to Stack Overflow / Stack Exchange network notifications.
The Adaptive image module provides device-appropriate versions of images from your fields.You can activate adaptive images by adding an adaptive effect to any of your image styles.
The Asset module proposes a new approach to the media management in Drupal, resolving a long-standing problem of reusable media files (images, videos, documents, etc) that evolved into the problem of reusable media content (images/videos/documents/etc with the attached content like description/licence/etc).
responsive theme with sass/compass
Provides a Drush command to quickly review cache settings.
Contextual Administration is an administration tool based on CTools Page Manager module. It allows for the deployment of custom administrative pages through a typical database driven mechanism or can take advantage of the typical page_manager exports through custom modules + exports or features module.