The Pomodoro technique is a widely adopted and highly effective method of getting through your tasks. When it comes to that point when you need to really buckle down and focus, using a Pomodoro helps to eliminate distractions surrounding you because your mind is now fixed on getting through as much as it can before the timer runs out. This is basically tricking your brain into thinking the deadline for your task is only moments away. But even with the clock ticking (and many Pomodoro apps actually making a ticking sound) it can be difficult to truly block out everything that is going on around you.
The book from Jeremy Roberts that takes the way you use Evernote to a whole new level.