I know this is probably a silly question, but I am starting as a loader tonight and I don't really know what to wear. I'm planning on wearing some Dickies work shorts that i got at Wal-Mart, and a plain white Hanes tee. I just know it will be hot and was trying to think of something plain but yet clean cut to wear. I am worried that I might have to wear a collared shirt or something? Can anyone tell me any advice?