Yay for your lucky number! :o) Brainstorming totally counts in my book, also for not-your-own-projects: I'm convinced that no matter what we're doing in regards to writing, including helping/working for others (beta, plotting, brainstorming etc.) is furthering our own writing as well.
My lucky number is 13.

Day 9: 1,5k
Day 10: 961 words
Day 11: about 60 words so far
Still the Nostalgia project, although I started re-reading the fannish prompts and plot ideas I had for some short works due in November.