Is it possible to have too many denim shirts? I think not.
Chambray shirts have become a staple in my wardrobe, mainly because you can pair them with ANYTHING. A denim shirt can dress down a frou-frou outfit, while the proper accessories can dress up a denim shirt. See? It can go both ways. Plus, they're much more comfortable than your standard dress shirt.
Here are some of my fave ways to wear it: