Why single-tasking is more productive than multi-tasking
Doing two things at once, like singing while you take a shower, is not the same as instant messaging while writing a research report. Don't fool yourself into thinking you can multitask jobs that need your full attention. You're not really having a conversation while you write; you're shifting your attention back and forth between the two activities quickly. You're juggling. When you juggle tasks, your work suffers AND takes longer--because switching tasks costs.
Thinking of getting rid of cable and watching shows online? Check out this article from Lifehacker