MacCulloch And Wallis
Shop just off Oxford Street. Trimmings, haberdashery, fabric, and patterns.
Downstairs is fabric, which is displayed with sample bits on coat hangers in the middle of the store, which you then take to a sales person and they locate the roll and cut it for you. Upstairs is buttons, trims etc, huge range, some really nice stuff. The very top floor has the pattern catalogues and from memory they stock the ones that John Lewis have stopped doing.