'Personal Productivity' has long been stuck in the rut of 'Time Management': an old dinosaur of the Leadership Development industry that gets wheeled out about as much as Jurassic Park sequels. Time Management is an outdated productivity method for factory workers, with the idea of not wasting a single second of the day.
It is not in any way designed to accomodate the human brain.
In the same way you have sleep cycles, your brain has cycles of focus. Real productivity comes from managing your waxing and waning energy throughout the day. Quality of focused time instead of quantity. Balancing a healthy life so that you are engaged with your work for longer periods of time.
More Productivity Tips? Try '26 Things I Wish I'd Known at 20'. "It's normal to have days where you just can't work and days where you work 12 hours straight..."