I just moved into a house in Philly and found out the furnace is slightly broken. My good friend/roommate and I were complaining to each other that it was cold, even wearing a coat and sleeping under several blankets. I ended up wearing my sleeper to bed after the first night, and even offered him one. He seriously thought about it because it's that freaking cold, but ultimately passed.
Today, I joked that I was "bringing the warmth with me" by putting jeans, a coat, and my shoes right over my sleeper, completely obscuring it from view. Thus, running errands was pleasant for me. I'll probably have to change out of it once company comes over, just to save on embarrassment.