One of the most practical local contacts a family can have is someone reliable to call when something goes wrong at home — especially when the problem involves air conditioning in the Mississippi summer. Last summer, when the temperature was around 100 degrees, our AC broke. I called Mr. William Lin of William HVACR & Maintenance LLC around 6:00 p.m., and he arrived before 7:00 p.m. I had mentioned that we had two young children in the house, and he came right away. What touc