Every interruption takes away 40 minutes of your writing time

This is my rough calculation, based on about six years of writing full-time. 

Every little interruption, be it checking your email, or Twitter, or answering the phone, or the door, or talking to someone in person, kicks you out of the concentrated writing mode, and it will take you 30-40 minutes to get back into it.

So if you only have 1 hour to write, or even less, a single interruption can cripple your whole writing day.

Hide.

Hide well.

Create a hide-out that is free of interruptions you can f...