It just doesn’t work.  What does work is doing one thing at a time and actually getting them done.

One at a time.

Focused attention and action.

Shut off the email.  Put the phone away.  Close your office door.

Start first thing in the morning with the one most important thing you have to accomplish.  Not the easiest thing.  Not the most enjoyable thing.

The most important thing.

Get it done and you will feel amazing.  You can move on to the next thing knowing that your day has already been a success.