A simple login page can present you with a great opportunity for decorative design you can't pull off elsewhere.
Repeateable design for a document page that groups attached documents into sortable tables.
This is a design for a full-year calendar view with tooltips that display the content for each event.
I believe that form pages demand attention to detail. They're often the hardest to pull off succesfully.
Even a "404 page not found" error page lets you decorate a screen in ways that you can't on a content-rich page.
