My work friend Paul recently asked me to do some spice shopping for him as he loves to make his own curries and spice blends. I found that by shopping at the ethnic stores around Nottingham that the Asian, Turkish and Chinese population use I saved him a fortune and got much better spices than you might get from a regular supermarket. I also found that the Jamaican stall in the Victoria centre had a big selection of spices and dried herbs and got some great Curry leaves from there. Shopping became an adventure and I was fascinated with all the food stuffs on offer, even though I hadn't a clue what half the products were in the Chinese mini supermarket!
On a regular note: Waitrose do a great smoked mackerel pate which I love but find hard to get.
Would love to hear of any of your 'food finds'.