Which shops do you rely on?
Daunt Books on Marylebone High Street for thrillers. I was at school with the owner and helped him stack his first shelves. For my Downton Abbey costumes I'm spending quite a lot of time in H Huntsman on Savile Row, which is a great privilege; I intend to camp there for the rest of my life. I buy my ankle boots at RM Williams on Bond Street and I enjoy browsing in Borough Market.