I just thought I would add a couple of links to add information on mindfulness and the importance of being focused (I tend to jump around a lot). Mindfulness refers to be focused on the present moment.
Below is a helpful link on the basics of mindfulness based stress reduction.
We had a work training where they stated that multi-tasking is not effective. I have also heard that it is stressful. The link below deals with the perils of multi-tasking.