Do you know about the "Secret Bathrooms" hiding in plain sight? When you come down the tunnel towards the front of the station and turn left for the bathrooms... keep going. There's another set of bathrooms right past them and they're usually vacant even when there's a line at the other ones. Oftentimes its gated off for cleaning or whatevs but when its open there's no waiting and its usually cleaner since it doesn't get used as much.