I am participating in about eight different Stack Exchange sites. How do I get a single view of all recent activity relevant to what I've posted in all the Stack Exchange sites?
I'm specifically looking for other answers in questions that I've participated, comments in questions I've participated in, edits to answers I've provided and reputation changes in answers I've participated in.
I can generally see this for one Stack Exchange site. I get the fleeting reply notification across all Stack Exchange sites at the top of my screen, but it's gone as soon as I look at anything and it only seems to cover some types of activity, and I can't find any way to ever look at that again once it's gone.
For new questions, I can set of an elaborate filter (which Stack Exchange sites, which tags) of what new questions I might be interested in (and have done so), but I can't figure out how to similarly see relevant activity across Stack Exchange sites.