Teaching others to improve their personal productivity is big business: Tony Robbins, Stephen Covey, David Allen... they and others have turned improving individual productivity into a massive industry.
At least for today, forget them.
If you want to finish a major project, knock out a task you've been putting off, or just complete a lot of work in a relatively short period of time, there's an easier way.
And it's free.
Say you need to complete a task you estimate will take 10 to 12 hours. Here's how to pull it off in one day: