Edina, we did have the silk conversation a while back and I was vastly outnumbered in my preference for silk nighties (don't bother with silk pjs though, they get wrecked far too quickly) vs. comfy pjs. I almost exclusively buy Marjolaine from France. They're ludicrously expensive (but so so beautiful) but I get mine from eBay where last season's are a bargain. I also like Hanro for their very thin wool/silk knit undershirts and camisoles.
Elle, some silk (like the nighties) I throw in a delicate cycle, others I wash by hand and make sure to do a vinegar rinse to get all the detergent off but the crepe de chine stuff/very thin stuff I usually send to a dry cleaner. Sometimes I'll wash it by hand if I want to wear it and it's not clean and won't be back from a dry cleaner in time but it's a lot more hassle and you never get it looking quite as well cared for as the dry cleaner, despite having a semi-professional steamer.
My 'upsized' Levi's 501 are attached, normally not a fan of all the distressing and rips but I really liked the sort of dark tuxedo stripe on the side that narrows a bit optically, a lighter denim can read quite wide and shorten me otherwise, especially in a baggier fit. Don't know why I only have pics with my coat on, was mostly curious if it could work under a coat. Still haven't made up my mind yet (97 more days to go) despite having a good fitting session with them last night.
And bugger me, I've taken a liking to a padded leather Maje aviator jacket, tried them on over a stripey dress yesterday which probably was a bit of an odd combo, but now I'm determined to go back an try them on some 70s flares for full period effect.
AuldA, if you're still about, what's a reliable weather forecast site for France in your experience? The ones I usually rely on (an app and Google) seem to be very far apart (which is unusual), one would require packing a much warmer wardrobe as around 5C during the day but the other is more around 10C 
Uniqlo U is launching this Friday, they look to have some really nice things. Am debating on whether to put an order in or just seek it out in Paris when I'm there, I do usually prefer to try things on at Uniqlo as I have a high miss rate with them but it may all be sold out by the time I get there.