Basically, stop getting distracted. Multitasking is impossible. Okay, we get it.
The real question should be "why is this same old, same old advice not working despite being common knowledge"? I know not to do this stuff. I try to follow the rules. I end up screwing up eventually. How come? Is there a way to cut that out? What we really need is an advice article about how to make sure we stick to the advice of other advice articles.
I'm not trying to be sarcastic so please don't take it that way. I'm really just so frustrated with the same old advice that just doesn't add anything new or special. It's easy to tell me not to get distracted and offer up a few half-hearted ways to follow through but what about pointing us to the root of the problem. I think this generic advice is best left for the trash. What we really need is something each of us will have to work out on our own.