When I graduated from college, I believed I was prepared and well-equipped with all the knowledge and tools that I needed to go out into the world and survive as an adult. I was so naive to how little I knew about what it meant to be an adult living in a home by myself. School prepared me for a career in corporate America, but it certainly did not prepare me for everyday issues, so I had to learn certain things as life unfolded. Talk about on the job training. One area in which I lacked the necessary training was how to properly operate and maintain an HVAC unit. Prior to graduating from college, those maintenance responsibilities always belonged to someone else. My dad made sure that we had air conditioning when I lived at home, and when I lived in a dorm or college apartment, the janitorial crew took care of all the maintenance of those HVAC systems. Therefore, when I lived on my own, I was completely oblivious to the need to have an HVAC maintenance plan. I was unaware that the A/C filter should be changed every 3 to 6 months, I didn’t know that air ducts needed to be properly cleaned, and finally, I was unaware that the HVAC unit needed to be serviced twice per year. Up until that point in my life, I had never interacted with an HVAC serviceman, and my first interaction came only after my A/C stopped working. I learned a lot about the maintenance of the HVAC system from that technician. He provided so many tips about how to conserve energy as well as a detailed checklist on the maintenance that I should perform to guarantee that my unit ran efficiently. To this day, I still use those tips and the checklist as part of my HVAC maintenance plan, therefore, I’m so grateful for that HVAC service technician.