At my gym, the steam room, sauna, and hot tub are all coed and in the same area as the pool. Since I usually only frequent any of the first three when swimming, it seems perfectly natural to just wear what I am wearing to swim, my speedo (or, less often, jammers). While I am usually the only one wearing one, I think people don't think it is a big deal because they can tell I was just swimming (or will be.) I think otherwise it might raise a few eyebrows. BTW, I know that the heat and chemicals can damage my suits, but I am not going to change, so I just rinse them and wash them when I shower afterwards. That's one reason that I own so many pairs, and besides, it gives me a chance to buy more later!
