If you say you’re open on Sundays, be open on Sundays. Most businesses change with time. This means that you’re going to need to have some time and manpower dedicated to auditing your website at least once a quarter. And make sure your in store prices are the same or better than your online prices. If not, prepare for the Barnes & Noble Effect.
If you take nothing else away from this article: think about how your client thinks about your services. Seriously. If I asked you to describe what you do, and then I asked your clients to describe what you do, would they say the same thing?