I've written emails for a variety of clients, mostly in the retail space: Lee Jeans, Wrangler, Three Dog Bakery, Cabela's, Helzberg Diamonds and more. B2B examples available upon request.
Subject Line: This is sew fast...
Subject Line: Happy Birthday! (Or is it?)
Subject Line: A deal for dogs who mean SERIOUS business
Subject Line: It's not just a hobby...