SeaRabbit I'm not a seller I'm afraid so I can't help but I'm sure someone else will be along shortly. It sounds like you're doing the right thing, uncomfortable boots are pointless.
So I'll try and recreate my post about London that Mumsnet ate the other day. Only had a couple of nights there in the end so not long enough to see very much (but also not long enough for it to start getting on my nerves). I went to the V&A menswear exhibition which had some great ndividual pieces, including the coat Nelson wore at the Battle of the Nile. But overall I found it a bit disappointing. They seemed fixated on gender non-conforming dressing which is interesting but hardly anything new and it was at the expense of so much else e.g. hardly a mention of Savile Row. But the tea rooms were as splendid as ever and there were some fabulously dressed visitors, e.g. a young man in a beautiful powder blue wool coat and an old guy in what looked like a hand painted leather jacket and full biker gear - another tribe that didn't get a look-in, the wrong kind of menswear presumably.
I only had time for one charity shop run so chose Marylebone High st - some great stuff but painful prices although I adjusted so quickly that by the 2nd shop, I was forking out £40 for some Toast trousers without even blinking. I can barely post at the moment, never mind upload pics, so you'll probably have to take my word that they're in excellent condition and slouch beautifully. I also wandered up the road to The Wallace Collection which was as sumptuous as ever, although I always come away feeling like I've eaten too much wedding coat.