When I was in Napa Valley last autumn, my favourite stop in St. Helena was the retro-fab and very gourmet Taylor’s Automatic Refresher, where I tucked into a freshly grilled turkey burger, sweet potato fries and a green tea milkshake (I know that's a lot of food but I was starving). The next time I find myself in wine country, I’ll try to do a lot more shopping than eating. One place that is getting a lot of buzz in St. Helena is Martin. This design emporium actually has a sense of humour about itself; the website has categories call ‘New Shite’ for the latest products and ‘Blah Blah Blah’ for the press section. If you can’t make it to the store, check out the online store here, which has a great...