Right now mine are in the gap between the deep freezer and the washing machine in my kitchen. That is, the cutting boards are upright from the floor in that space.
I'm wondering, what is the "normal" place people store their cutting boards? I've seen them on the wall facing the sink in a couple of homes. That wouldn't work for me since the sink is a very splashy place and I'd hit the faucet when taking the boards out. I wouldn't just let them sit on the counter because of space issues