Plan for periods of sustained work
  
 
  
    As Carlson's Law tells us, our brain needs time to become fully 
engaged with a subject. Interrupting it once it has reached its phase of
 maximum productivity means returning to square one:
        loss of time, energy, and hence of efficiency!         
 
    
  
    Disconnect from the world around you  
 
  
    To some this may seem unthinkable, utopic. And it only makes 
sense when one needs to perform a task that requires concentration. Of 
course, disconnection must be planned (one doesn't simply
        disappear!): adjust its duration, take into account one's post 
and the context, set up communication (phone message...) and/or a 
back-up, and on the day-to-day level get your entourage used
        to the idea that you are not reachable at every moment. It's 
also a way to create respect for your own time!         
 
    
  
    Above all, don't give in to the law of multitasking, but rather 
make a contract with yourself: "for 5, 10, or 20 minutes, I will work on
 this question and only this one." In such a way we
        create, mentally, a bubble that protects us from the outside 
world... and from ourselves!
        It takes practice to do this successfully but the technique is worth trying out!