And when should you walk away from the telephone and shop, golf, or do whatever it is you need to do to get the issue at hand outof your mind, even if just temporarily?
Responsive web design was invented just over two years ago, outof the robot-infused mindof Boston designer Ethan Marcotte (he went on to write a book of the same title).
"When Joe kindly agreed to help us out six weeks ago it was always with just the last nine games of the season in mind, " said chief executive Alan Hardy.
Or do we turn a blind ear to last night and just try to stay focused on the tasks currently at hand while simultaneously nudging the mental images outof our mind?