Everything that PrettyCandles said.
If a bucket and mop is provided, give your shower a quick mop out after you have used it.
If there's is a queue for the showers fgs crack on with it when you are in there. If there is a 15 minute period between us hearing the water stop and you emerging from the cubicle then expect some glares when you come out.
Ditto if there is a big queue for the washing up sinks PLEASE get a move on. Don't triple rinse everything. Wipe the sink down and remove your slops from the plug hole when you leave.
Don't play music, just really not at all, not even super quietly. Chatting, shouting, laughing, farting, kids screaming, dogs going woof, car doors banging, rustling windbreaks, peg-mallet banging all of this noise is fine and dandy between 7/8am and 10pm, but other folk's music no thanks. Do you want me to put on some opera so we can all listen to it together? No? Then turn off your Bob Bleedin Marley because he is giving me the splayed toes.
Salamander obviously I am not saying these things at you
, just you know releasing them into the ether on the web.