So last evening I was spending the night at my sister's after enjoying a movie with her and my brother-in-law. I was relaxed, cozy and ready for a great night's sleep. But sleep wasn't happening. My mind can get pretty busy in that situation, unless I do something helpful. So I called up one of my memories-that-work and began rerunning it. When I was 16, living in my dad's house where I'd lived on and off my whole life, I took the stairs down from the second floor to the main floor.