Sounds like a fun trip. Dave. You're going to some really nice places. Russell Square is only about 400m away from where my office is/was, so we could have met up if I was still working. A shame. Denmark Street is OK, but I never found it particularly nice to shop there. OK if you knew what you wanted, but too cramped and busy for relaxed browsing. Vintage and Rare guitars was the best shop by far, and also fairly relaxed inside, but that shut several years ago and moved down to Bath.

Just remember that the shops can arrange to courier items back for you, so no-one need suspect you've bought anything and upset the holiday atmosphere. I once did this with an amp when I was away on holiday in Norfolk, and got them to delay sending it until I was home again.