Email serves up a constant conundrum. We need it to get our work done, yet seeing the number of unread missives ratchet up over the course of the day can send even the most steady among us into a sweat. Unfortunately, we are often not our best selves coping with the onslaught and fail to reply. The problem is that nothing can be more frustrating or cause more bottlenecks in productivity than waiting for a reply that never materializes.

Read more at Fast Company.