Every house has certain sounds that you have to get used to if you live there. At my parents' house it's the sound of the house settling, air bubbles in the heating pipes, and water running through pipes in the basement. Living at home, I got to the point where if I was in the basement I could tell if someone was walking from the main floor up the stairs to the second floor or down the stairs to the basement. I knew the sound of the garage door opening, the washer or dryer running, and all sorts of other everyday noises.
When Brian and I moved into this house, I had to get used to a whole new set of noises, especially since we got the dogs when we moved in. After awhile I adjusted to it all; the sound of the air conditioner, the dishwasher, the washer and dryer, the dogs going in and out the dog door, the sound of their nails clicking on the tile floor, the noise they make when they push their paws up against the wall as they adjust themselves on their beds. Eventually it's all just background noise. I hear it and register what it is without even thinking about it.
Lately though, there is a new noise around here. Besides the baby I mean, I already have all her noises cataloged (which unfortunately still doesn't mean I can sleep through them.) I mean Onyx. In another post I talked about how she has started going upstairs to lay outside the baby's room. Well, now I hear her going up and down the stairs. And it's noisy. And before she started doing it, Brian was the only one I heard going up or down the stairs. So now, even if I'm home alone, whenever Onyx is on the stairs I think for a second that someone is in the house with me. It really throws me off. I'm sure I'll get used to it soon enough. Are there any random noises around your house that you had to get used to?