All we need are Home, Alternate, Heritage, and Indigenous jerseys.
That's FOUR.
Wear the Indigenous on two rounds, one a designated Indigenous Round, one to be decided by each club.
Likewise, the Heritage jersey twice - designated Heritage Round & one other game.
All others games either in home or alternate jersey... and ANZAC, Women in League, any other causes/promotions can be signified by a special badge or something else that's not a completely different jersey.
But what of the Dragons v Roosters ANZAC game?
Well, let that be an exception - and have them wear the Heritage jerseys for that year on ANZAC Day, even if that's the 3rd time in the season they wear them.. and their Heritage jerseys don't necessarily have to be WW2 Heritage.