A frequent business type near Post Office is Take Away Restaurants.
For food stuffs and household goods there is a Grocery Store around to provide. Toothache? There is a dentist locally for all your dental needs. Rest assured, there are a couple of doctors in the area. Conduct research and borrow literature from the Local library.
For PC's, iPads, Macs and Tablets, check out your local Computer Store. A handful of schools are located nearby. The local area boasts a Taxi service. A Physical Fitness Facility is in your area to help get you in shape.