My friend C. has come up with a neat phrase: "Try to buy stuff from people who made it." I like it.
I've thought of one to add to the collection: "Try to buy stuff made without poisoning people." I know it's not as positive, but I'm in a feisty mood. For more on one way to do that, visit OrganicBouquet.com. Their prices seem fairly in line with normal floral delivery, and they're working with major growers to encourage them to start up organic production. All in all, a way to buy something you can feel good about.