Especially those with a great idea rolling around in their head and NO words on the page! Check out this site and get started. National Novel Writng Month. It's FREE and easy to sign up and full of advice and pep talks, forums to talk to other writers in your area, a word count ticker, and all other manner of items to help you GET STARTED!
Stop going on about not having enough free time to write. Who has free time? Who are these people?
Write now! Offical start is November 1st. But you can go on now and get signed up.
So go on.....