> The one kind of physical shop I really miss is the kind of place where you can buy one screw, nail or picture hook etc.

So much agreement! I have a bunch of obscure parts like 99 wooden dowels from when I needed one and had to buy 100.

Screwfix is sometimes OK for this, but I still end up in situations like the above where I have 99 wooden dowels that will remain in my garage for all time.

(For what it's worth, I also completely agree with Amazon vs stores like John Lewis etc, I haven't bought anything from Amazon for years now, and definitely don't miss it at all)