Elle, it's mostly wool. I actually ended up finding it on the COS site, but it's not on sale there (hence not finding it before) and not in my size either
, it is on sale in black:
www.cosstores.com/en_eur/women/womenswear/skirts/product.short-wool-skirt-with-pockets-blue.0683050002.html
I have to say it's a bit odd fitting on that model, it's definitely more of a mini skirt in RL.
I'd forgotten about day 4, I can definitely do that one of these days. I like day 6 for the graphic quality in the picture but can understand it feels a bit odd at first and possibly one of those that looks more impressive in pictures than RL. I think in the inspiration pic it also looks more 'efortless' because everything is quite loose, even the tie on the jumper isn't taut so it feels a bit more 'easy' and less bow on a present.
Dermatica is only in the UK for now, I'd assume Irish dermatologists would be cheaper than the London ones though. I'm not sure if you need to be a UK citizen or just need a UK address for Dermatica, in that case you could try it with a forwarding service.
Now for catching up with older comments when I was gone:
Catherine, I haven't tried the Isabel Marant x L'Oreal lipsticks but they came up in skincare blogger/editor's yearly favourites and they were very complimentary about the whole range with the exception of the weird powder blur thing. They are matte though, so keep that in mind not everyone likes them (especially those with a bit of age to them) and it means colour shows up a lot more graphically.
Elle, vinegar rinse is the last step, no rinse after. If washing by hand I do a normal water rinse to get most of the detergent off and then follow up with the vinegar rinse.
Underthecarpet, lovely to read your comment. I'm glad we've all been able to contribute in some small way to your style change when you were in need of it 
I haven't been contemplating any style goals for the year ahead but have been taking inventory of what were sensible buys and what wasn't. Anything silk has been brilliant, probably helped by the endlessly nice summer. Even though my Lemaire and Joseph jumpers were pricey investments they've really paid off for me. Most of my other jumper are either thinner merinos or mohair and since I feel the cold so intensely these days buying heavy densely knit jumpers have been such a game changer, the biggest gain has been that I'm now forced into my single super warm parka when it's colder, the jumpers have allowed me to wear thinner coats.
Less of a good buy were the Isabel Marant stan smith lookalike trainers, it's not that I don't like them, they just aren't worn a lot where I assumed they'd be a go with everything type shoe that I'd reach for often. In contrast, the leather Vagabond Céline lookalike trainers that were a bargain got a lot of wear because they found a place in my work wardrobe where the IM feel a bit contrived.
So basically, extreme weather clothing has served me well alongside anything Céline inspired...
Although my Levi's 501s qualify as neither but got a lot more wear in than anticipated, which is surprising considering how long I uhmed and ahed over them for forever, they've been great at knocking the formality out of me a lot.
I say this every year that I'd like to do a bit more second-hand shopping but with lack of options locally I fear if I get into it online I'm just going to end up with a few duds and be in this constant cycle of buying and selling which just feels like too much hassle. There are some online sellers that accept returns, I think I'll look into those more. I might also look into more high end second hand, so pretty much spending on something comparable to new but higher end brands (in shop or with returns only). I also have a pile of clothes I probably should get selling, but no promises.
Oh and before I forget, can someone or anyone volunteer to be in charge of Dior exhibit outing? I think dates in May, June, and early July were mentioned but unless someone actually takes inventory and proposes a few definite days I doubt it's ever going to happen.