For the first time in probably 10 years, I've got a handle on my email. I unsubscribed from every list I could find, created a set of auto filters that apply a label and skip inbox based on some lists that I still want to be subscribed to, but that I don't look at every day.
I feel much less stressed about my communications. It had grown and grown over the years organically (both from managing 30+ people) and having interests in a ton of different topics.
One thing I won't ever do again: subscribe to any mailing list on google groups. I almost never actively participate in them, and the amount of goofy noise you get is out of control.