I am forever buying sunglasses — branded ones as well as those being sold by street-side hawkers.
London, New York, Milan and Paris are my favourite shopping destinations — obviously because of their status as fashion hubs — but I am also very fond of Le Mill in Mumbai. My top tip to fellow shoppers who go to New York to shop is to check out the Brooklyn flea market for sure; not because it is not luxury per se, but because you will be amazed at the kind of vintage stuff you can get there.
Brooklyn flea market
Le Mill
Milan