Use delegated types so now the homepage feed is no longer just a list of "todos" but rather a list of "entries". An entry can be a Todo, Post, or Comment. I still need to finish the design, but long-term vision is to have a unified feed of WIP activity which still will be mostly todos, but with some of the other entries as well (e.g. when someone creates a new post, adds a new product, etc). #wip