Photoshop PPW Extension
In his latest book "Modern Photoshop Color Workflow" Dan summarizes his experience presenting the "Picture Postcard Workflow", aka PPW: a disciplined, speedy, highly automated way of image enhancement.
The PPW Panel
Made by Giuliana Abbiati, the PPW Panel is a free collection of all the advanced, automated tools described in Dan Margulis' Workflow, boosted by scripted customization. It also provides you with self-contained documentation and a special Color Guide.