One of my most favorite is Gap, the holiday collection displayed on their website is amazing. I am a sucker for white. I ended up buying E two different hats from the winter collection this year. If I had a girl I would have splurged on the white boots and furry coat.
Another favorite is Anthropologie. The stores do a great job with display. Here is a window display from Wayne, PA
I think this year Ethan and I should put up a white tree. Not only is it the trend this holiday season, but I love the crispness. I want to incorporate this into E's Christmas photo this year, too bad there's no snow yet.