Can't help you there, but while in London if you have time a must see is the Victoria & Albert Museum. Quilts, tapestries, needlework, clothing ...
I personally haven't made it there YET, so far every time I get there other things get in the way, and the one time we made a plan to visit this museum they were closed (it was boxing day).
Hubby tells me every time though that if I go to *one* museum in London, choose the V&A.