My friend Joe Kissell has this domain: alt.cc.
Isn't that fantastic? Can hardly get shorter, and yet loaded with geeky significances.
You may have noticed it's often hard to get answers to emails (both to companies and individuals) in a timely manner. Or indeed at all. It's clear that many people don't wield a tight whip over their email. Joe has a good article about that. (Notice it's in several parts.)
I've always been a bit puzzled by so many people who never have an empty inbox. I get 50-100 mails per day. The first thing I do every day when I get up is empty my inbox. I simply answer every single mail in there, and do whatever actions are required by some of them, and boom, it's empty. Sometimes this takes ten minutes, sometimes two hours. And then I keep it empty as the day rolls on, and it's empty when I go to bed. What could be simpler? Unfinished communication is a drain on your attention.