Emailed to the editor - feeling very pleased with myself.
A day of redrafting and tinkering - feels like a good enough job.
Completed the first draft - not in great shape but it's all there
First half of the first draft
Turned the brainstorm into a structure - basically a list of headings and ideas on the computer screen
Brainstormed the subject area - a nice messy spider diagram of things to write a about
Emailed a couple of ideas to the editor and got confirmation of which one to got for and some useful feedback on the last one.