Thank you Jo. My coat is working out just fine. I worried too much, but then again, it's better to be safe than sorry.
Yesterday we spent the day in London. It was not unbearably during the day, but the stores (whoever warned me about this was dead on) are OVER HEATED, so watch out for the layers you wear. My goodness, I was looking forward to going into the cold off and on just to revive myself. I thought I'd pass out in Harrods.
In the night we went to Hyde Park and that is where I was glad to have worn the many layers, scarf, hat and gloves. It was quite chilly.
For anyone wondering what to wear to London in winter, I have to say that I've seen jeans on all ages (from light to dark/black jeans), Northface Jackets, Patagonia, and other brands that I don't remember now, but they were not worn on Americans!! Very confusing because we would assume the wearers are from the States and it turns out to be Brits or Europeans. We've also seen lots of hoodies. Good thing I didn't talk the kids out of bringing theirs, and on older men too (think 60+)! I keep muttering to the kids, "so many folks on RS site worry about clothing, and so many warn that one should not wear this or that, yet here we see everything." Oh, the backpacks. Didn't some people say that messenger bags were more Euro looking? Please. You see lots of backpacks, and carried by males/females of all ages. Shirts, jackets, backpacks with logos everywhere. Winter coats are mainly black/charcoal/greys, but colours are to be found (green, red, sky blue, turquoise, burgundy, navy, stripes, checks, white, cream) etc.
That's about all I can think of in the clothing observation department. For museums and shops I'd wear a thicker coat (someone had mentioned this) because it's easier to peel off than layers, but I did manage to almost strip down to the lightest layer, LOL
Any questions, ask here or send me a PM.