I'm still cogitating on this and probably won't be certain of what I've learned for a little while. But so far, here's what I can say:
1. I really like the small assignment to wear a different silhouette several times a week. Last year, we had a "no repeat November" where we were not supposed to wear the same outfit twice in a month. That challenge felt very onerous at the time. Why? Because, as I discovered, I prefer repeating outfits that I love to coming up with new combinations just for the sake of it.
This challenge, by contrast, is just enough for me. It allows me to repeat outfits within the month if I like, but it reminds me to try new combinations and to think about wearing items I might otherwise neglect.
As it turns out, I don't think I did repeat an outfit! Which is kind of amazing in itself, for me.
2. It also helps, I think, that my wardrobe is a bit larger than last year, with more workable, modern options. I may wish to be a minimalist, but it seems for now I am happier with a moderate closet. I need to count "working" items to see what the size is -- I'll do that shortly. I think it is around 80 or so.
3. Like Aida, I seem to find more variety in switching up my bottoms, so adding a dress in a skirt in knit fabrication was a great idea and has substantially increased my pleasure -- far beyond the cost of the items.
4. I still love my FFB of fluid sweater semi-tucked into slouchy skinnies. I think it suits me better than just about anything, and feels great. But I get more pleasure from wearing it if I'm not wearing it every blessed day.
5. Footwear is key, and as Aida said, the shaft height seems to give me some sense of variation. For me, toe shape and heel height also matters. But I really don't wear heels beyond 2 inches in winter anyway.
6. Varying colours doesn't matter as much to me. I do love to have colour in my closet and I get great joy from seeing, touching, and wearing lovely colours (esp. in winter). But at the same time, doing so doesn't make me feel "less bored." Last week was almost entirely a week of grey outfits and that didn't matter to me a bit because I was varying silhouette. Next week might be a week of berry or blue, and the same would be true.