I thought of an idea in this thread that I'd be interested in tackling.

Since our site deals with a lot of digital products, but also some shippable ones (sometimes they are the same movie but offered in digital and physical formats) we should make the "Product and its derivatives are shippable" property more closely tied into the Attributes system. That way a product can contain shippable and non-shippable variations within the same node; something it can't currently do. I'm not sure yet how to best approach that but thought I'd put it out there.

Come to think of it, I'd also like to interface with Ryan regarding the Store Credit module and how to plug into it. I hope there will be enough time for all this coding!