Boots is the only place I can find that stocks compeed toe blister plasters. I buy 3 or 4 packets every time I visit the UK.

The Dickens House Museum in Doughety St is fascinating (Russell Square Tube). Just walk around....the Wellcome Trust has a really interesting Medical Museum in Euston Road - and the British Library has some fascinating books on display. If you want decent Bras John Lewis does the best fitting service bar none, and I always buy my undies at BHS....keep in mind I live in Australia!