Holy fuck, I'm late to the party. I'll have to scroll through the posts again later. I layer, yes. Since I've been working from home, I freshen up with whatever I'm in the mood.
I feel if you've worn one frag enough to fully appreciate its evolution, then you can breakaway and start layering/experimenting throughout the day.
Unless you meant layering in one go. I feel with what I currently own in my fragrance wardrobe, it would be a medley of death or an Axe incarnate hahaha.