One of the worst things that you could ever do for your HVAC component is to forget about it, but i am a naturally forgetful person, which is why I have to consistently set reminders for myself before I forget; However, there are certain things in my life that I seem to never remember, and those are my gas furnace and my central a/c… My HVAC units are absolutely the most neglected things in my house, and I say that to my shame. I have cost myself a ton of money because I didn’t remember my HVAC units, did you suppose that you have to change the air filter on your HVAC component every few weeks? I obviously suppose that as a fact, however when it comes to remembering that I need to change the air filter on my gas furnace, I forget every time. I didn’t realize at first that if you don’t change your air filter, you could cause lasting harm to your HVAC unit, even though I suppose now. However, even after spending money on disfigures caused by the forgetfulness of my HVAC unit, I still forget about it periodically. I also forget to say something to an HVAC serviceman whenever I notice a small problem or noise in my HVAC unit. If I would call an HVAC serviceman, I would save money by nipping the problem in the bud, even though I can’t seem to remember to call the HVAC serviceman until the gas furnace or central a/c actually breaks down, which costs myself and others a lot of money. I wish that there was some way to help myself and others forget. Until then, I have settled with prescheduling to have an HVAC serviceman check all of these things for me.