Here is a great post on five simple things to do in order to get work done more effectively from Hightail.com
“Office workers are interrupted (or self-interrupt) every three minutes, according to a study by Gloria Mark at the University of California, Irvine. To make matters worse, it can take up to 23 minutes for a worker to return to the original task. No wonder it’s so hard to get work done. And while our ability to juggle work is necessary, multitasking is a weakness, not a strength. A 2009 study at Stanford University found that frequent multitaskers not only underperformed when compared to nonmultitaskers, they also used their brains less effectively when they focused on a single activity.”
I know I am going to try to apply some of these, though I don’t think I’ll be getting in to work any earlier to get a jump on the day… I definitely find that the 90 or 25 minute work chunks work great, though.