My wife has a better method, she refuses to use it. But she is a dying breed.
The Times has a good article today on how someone was able to cut back email considerably. Check it out here.
I stopped using e-mail most of the time. I quickly realized that the more messages you answer, the more messages you generate in return. It becomes a vicious cycle. By trying hard to stop the cycle, I cut the number of e-mails that I receive by 80 percent in a single week.