There are real politics surrounding the fish stalls in Pimlico. You are either loyal to Pat or John. I go to the former, though can admit the latter's fish looks just as good if not better.
The butchers shop has been taken over by Wyndham House (of Borough Market) so great meat at a high price. Bonne Bouche is a nice bakers. Plus the Cruisaid charity shop is good for second hand books (even with a comfy chair to sit and browse) and vinyl. And some good delis. The History Store on Churlton Street sells some lovely old-fashioned cards and things - much nicer than Part Times - whilst Chimes sells at least a dozen ciders and various perrys by the glass. Next door to the Rippon Cheese store is an amazing (in many senses) toy shop. Gertrude Fashions opposite Sainsbury's looks very unpromising but sell well made and smart German clothes (Basler etc) at very reasonable prices, with a bargain basement full of samples and discontinued lines.
I've been going there every Saturday for around 15 years. I am a bit evangelical about buying from small shops and specialist providers. But also enjoy knowing the shop keepers, and reckon that with the temptations of a supermarket our grocery bill is significantly less, yet the stuff we buy is nicer.
(I accept that SE1 also has brilliant shops, but the area around Lambeth Bridge is a real desert. )
Tip to anyone still wanting to make raclette and having difficulty getting the real raclette cheese- you can use Port Salut to get a very similar taste and effect and that is readily available in all the supermarkets and even some 24-7's
No raclettes left in Lidls Catford this morning but the might still have some in the OKR branch-worth a look as it is/was fantastic value for a tenner!