I'm not sure why this thought keeps going through my head the last few days but been thinking about lots of stuff from my youth. I can still hear the screen door on our back porch from the house I lived in as a kid. Every time I hear a train, it reminds me of sleeping with our windows open and hearing the train through the woods, several miles away. Some of my favorite smells that take me back to my childhood are saw dust from a fresh cut oak tree, pipe tobacco, burning leaves, and a two stroke outboard. Simplicity at its finest.