I have size 9 feet which are quite narrow, and it is a pig getting anything nice to fit.
Sometimes Next/Clarks are too small and places like Evans just too wide.
I mail order a lot (Tall Girls/After 8) but they are SO expensive- £79 for ballet pumps plus p & p.
I am tall (6 feet) as well, so trousers are a bugger too. Everyone always says "oh you're so lucky being tall "- but it's so hard finding things which fit.