Doing the little things that make your showroom customer friendly will help cement relationships with customers.
Well, these same little things done in running a showroom business will help cement relationships with customers. Your goal should be to be as "customer friendly" in as many ways as possible. Sure, there are a lot of "big things" that you have to do to be successful, but it's the sum total of the "little things" that will make you better than your competition.