I'm off next week for a week in London, one of my favorite towns in the whole world, but I'm looking for little fun places, experiences that I may not have found before and am wondering if any of you can suggest something. My friend and I have both spent lots of time there before on prior trips and have seen the major spots and would love suggestions. I'm an artist and she's a traveler, and we're both interested in any number of things. Any thoughts? TIA Pat