They’re always quiet when I’ve been in, particularly Cambridge. I wonder if you can try things on? Otherwise maybe not much advantage over online.
Though I am craving seeing things in real life instead of on a screen. My perfect day would be to meet friends for brunch, then go into London, wander round Islington to all the lovely little shops including (IMHO) the best Toast, then meet a friend to go to The Royal Academy then a late lunch at Brasserie Zedel followed by cocktails.
Not possible for a while though...