I received a call from my sister, Christy, and the good news was that she had finally gotten her visiting visa. I was over the moon because I had not seen her for four years. My mind was racing with ideas about everything we would do when she came. Christy had not told me the exact day she would board her flight, but I was already making a list of all places we would visit. It also occurred to me that I needed to contact an air conditioning provider for HVAC maintenance. Since my sister would be staying for at least three months, I wanted to make her stay indoors as comfortable as I could, and that had to start with ensuring the indoor air quality was at its best. Christy loved tropical weather patterns, and the indoor comfort business in my home area was not strictly a booming business due to neutral weather conditions. My sister’s announced visit prompted me to learn more about air conditioning and the idea of buying a new thermostat root. First, I needed the advice of an air conditioning technician. During the last air conditioning repair, the a/c serviceman told me that the multi-split air conditioning system would be more efficient with a more advanced temperature regulator. It prompted me to research the gadgets the air conditioning company offered and the cooling industry in general. With the HVAC installation in check, all left was to wait for my sister. I could not wait to teach her ice skating now that the quality air conditioner was running smoothly. When we were little girls, we were put on our roller skates and imagined that the pavements and roads were ice.