A frequent business type near Catherine Duncan is Beauty Shops .
You will a find a range from budget to luxury hotels in Big Bear Lake. If you are hungry there are a few restaurants serving the area. For food stuffs and household goods there is a Grocery Store around to provide. The area's Investment Advice firm can advise on investments, savings and trading.
For advice with tax or credit there is a local accountant who can help. There is a Gas Station in the local area. Head down to the Drug Store for everything from prescriptions to cold and flu remedies and cosmetics.