# 1. Cut off the noise. Comment: Turning off the Internet until 5 has had a huge effect on this.
# 8. Isolate yourself (ha!). Comment: Too much of this isn't good, though.
# 9. Healthy body, sharper mind. Comment: All the early morning exercise really has helped with concentration.
# 10. Be patient. Comment: The writer says that when you sit there for 15-20 minutes before you start writing, you'll have an impulse to do something else instead, which you should resist. For me, checking e-mail and surfing the web was my go-to means of breaking that unbearable pause when you actually have to do the hard work of thinking before writing. Not allowing the Internet to be on at that time left me with nothing to do except think and write.
Other things I've observed:
What kind of system do you use?