There's also the Workaid shop in Chesham, if that still counts as
London for you.
http://workaid.org/ They mostly send tools to
developing countries, but also sell a lot of them off on site. These
are all refurbished/sharpened, since that's what they do,, but they're
also always looking for volunteers.
--
Sam Kelly,
http://www.eithin.co.uk/
That's it. We're not messing around anymore, we're buying a bigger
dictionary. - Tibor Fischer, The Thought Gang.