This is the title of a book by Dave Crenshaw.
Dave Crenshaw, also known as...
"Multitasking? I can’t do two things at once. I can’t even do one thing at once," said Helena Bonham-Carter (I don't believe her.)
I woke up in a state of mild panic, thinking 'NO-ONE can possibly do all the things I've got to do today and also do them well. Something's got to give.'
Then I thought...but there's nothing to stop me trying.
Perhaps I could proofread a 60 page website on my iPad while circuit training round the supermarket?