Do email exactly twice a day — say, once first thing in the morning, and once at the end of the workday.
Allocated half an hour or whatever it takes, but otherwise, keep your email client shut and your email notifications turned off.
Anyone who needs to reach you so urgently that it can’t wait until later in the day or tomorrow morning can call you, or send a runner, or send up smoke signals, or something else.
Or, more likely, find someone else who can do whatever it is that needs doing.
Entirely true, but obviously just a copy of Robert Townsend’s advice about phone calls in “Up the Organisation”.
Which is, of course, along with Parkinson’s Law and The Peter Principle one of the only three books on management that anyone should ever read. And also one of the three that everyone must read.
So, copying without attribution: we convict Marc Andreessen of plagiarism. Sorry, done and dusted, guilty.
Hmm, what’s that? You think that maybe Andreessen hasn’t read Townsend? No, that’s impossible, guilty it is.