I remembered putting a note on the front door, telling the HVAC technician to come into the front door and knock on the inner door.

I was working in the kitchen when I heard the HVAC technician walking into the house.

He said he had pounded on both doors, but I was answering. I had just taken my earphones off, and it startled me to see him standing behind me. He said the note said to come to the inside door, and he heard the music, so he knew I was home. I laughed and apologized. I was baking goodies for the bake sale, and I was listening to music. He asked if the furnace was in the basement, and I pointed to the door. I let him show his own way into the basement, while I finished baking 48 cupcakes and 10 dozen cookies. When the HVAC technician was done, he asked if I had time to go over the bill. He sat down and told me he had found nothing wrong with the furnace except for there being a dirty air filter. He didn’t think they had changed the air filter in months. I remembered asking my husband to change the air filter, but apparently he had forgotten. I also remembered asking him to show me how to change the air filter, but that hadn’t happened either. I asked the HVAC technician to show me how to change the air filter. Once I learned how to do this, I wouldn’t need to worry about the HVAC technician walking into the house. I wouldn’t need him nearly as much.

heated floors