"In effect," says Meyer, "you've got writer's block briefly as you go from one task to another. You've got to (a) want to switch tasks, you've got to (b) make the switch and then you've got to (c) get warmed back up on what you're doing.Everyone's different, of course. I like to work with music, and find that I'm actually more productive with even vocal tracks playing in the background. Furthermore, I enjoy the little breaks from work that an IM conversation or two can provide. Without them, I find myself slowing down and growing bored of what I'm doing. Though maybe that's because the testing I'm doing right now is excessively boring.
Do you think you're better off multitasking in general? At what point, for you, does doing multiple tasks become counter-productive?