By request, Season 5 mostly concentrated on extending the Admin functionality.
s05e01 - Batch Actions
Admin functionality to allow shopowner to perform multiple updates in one shot (eg printing orders, updating orders etc).
s05e02 - Info Page Extensions
Functionality that extends the Info Page Manager. Adds Authors, Folders and a WYSIWYG Editor.
s05e03 - Invoice Comments
Adds extra comments at the bottom of Invoice and Packing Slip. Includes QR code generation for printed items to allow customer to easily find their order.
s05e04 - More Info Page Extensions
Functions to aloow order_by, unique_slug and assigning pages to products!
s05e06 - Templates & Theming
Two templates including the Gustavo Theme as seen on this site...
s05e07 - Layout Modules for Product Info
Three more Layout modules; weight, manufaacturers_image and MSRP. Includes admin functionality to allow you to assign MSRP to products. Can be see at the Shiny Apples product, halfway down the page.