A frequent business type near Chaddlewood Post Office is Car Dealers - New and Used.
If you are hungry there are a few restaurants serving the area. Looking for insurance? There are some insurance agents closeby to lend assistance. A local Employment Agency can assist with anything from graduate to executive positions. The area's Investment Advice firm can advise on investments, savings and trading.
Only a stone's throw away you will find a management consulting firm. There are a few attorneys nearby.