I thought everyone had a timer on their transformers. I had to install one on my layout plugins to keep from leaving the layout on, over night or even days, even though I have small pilot indicator lights to indicate they were powered up. The layout is upstairs, out of the way,
It was easier to add a plug in Christmas tree light timer I already had than to change the pilot lights out to bigger, brighter ones. My timer gives a choice of 2 hours, 4 hours, 6 hours or ON.
Charlie