Shiny, well done! Funny, how I also used color as a sorting tool for my closet Cleanout. When I saw your post this morning after happily finishing my tees last night I laughed. By the way, if you read my response to you, I ended up adding red/rust tees also. So now my closet is pretty much done.
Even though I used a different method to sort and purge, as I made progress, a clear color theme came out. This motivated me to start purging by color.
I used a several step method because I had some questions about style and whether I should purge some items. I'm still working on the style part but I have the colors I want. I'm sure the rest will take time to evolve,
I must say that the dust lurking in closets is universal. As I went through each section, I discovered more than I thought could ever exist! If I make this a yearly or even twice yearly process, I would probably use your method.
Oh, I am reminded by your description of your coat closets, which sound remarkably like mine, that I still have one area to tackle and that is my coats. Sadly I do keep mine stuffed in among all the other gear in the hall closet.
So congrats on your project and finding a wonderful sorting method. It has been nice knowing that someone else is also busy cleaning their closet this holiday weekend!