Is Attire Important in Customer Service?

Greg Kratz of Deseret News shares a few insights that he's received over appropriate dress and conduct for customer service representatives. Kratz, after receving a few emails, notes that, I believe it's true that a crisply dressed employee gives a first impression of respectability and competence. However, if that isn't followed up with helpful, friendly service, I may storm angrily out of the store and forget all about how nice someone looked.

How about you? Does attire really matter with customer service? We'd like to hear your thoughts.