I hate the backwards hat, but I sometimes have to use it practically at work to act as a sweatband when I have goggles on.
Even worse is people who have a hat on and driving at the same time. It just irks me. And it's connected with a category of "driver" I'd rather not be connected with.
Also, sweatpants, really? I haven't worn sweatpants outside of working out since I was 15.