Aaron Simpson, co-founder of lifestyle luxury brand Quintessentially Group, on his 24-hour global concierge service, plans for a private floating club at the 2012 Olympics, and painting an heiress’ plane pink.

Point of Origin: In the film business, I was looking after the folk coming into town ... these film stars that had no idea what to do in London. As a producer, I would end up taking them out and making them feel cozy and at home in various clubs and restaurants around town, and then the concept came to me. I said to a couple of my partners who were doing sensible things like being lawyers and restaurants owners, "Lets set this up." We thought it would be a very simple 100-person, 100-member club, but now it's in 52 countries.

While consumption, environmentalism, sexuality, globalization and politics are enjoying their moment as the current hot buttons of the art world, one abstract that's managed to flourish without the pomp and noise is the contemporary diaspora -- a poetic term given to the upheaval and consequent relocation of people from one land to another. Basically, think of, well, any short story by Jhumpa Lahiri, and you'll find yourself with an excellent handle on the type of art that the Sundaram Tagore Gallery specializes in and advocates throughout its four locations.