My SIL has installed an "on air" light, google controllable, so when we say "Hey Google, it's nap time", it turns on the red light and starts white noise in Ozzy's room. The light is a signal to shush, since baby is sleeping
The large photo on the right is our reflection in a bus stop ad for Thomas' English Muffins, I like the way it placed us in the countryside (only glad it's faint since my fashion sense is out the window since taking care of Oz ;-) )