I was thinking that I would like a new tab in the StackExchange global inbox that would:
- Show a list of sites for which I have an associated account.
- Highlight the sites for which I have pending notifications.
My idea is that, right now, it is somewhat painful to see only the sites for which you have an associated account, and after that you must visit all of them in order to see for which ones you have recent activity.
Here is a quick mockup of what I was thinking about: