Actually, I just buy a lot of crew neck t-shirts and shells. I think the main reason she said that is because I work with high schoolers and young boys tend to, how do I put this delicately, try to look at your boobs. Sorry, couldn't put it delicately. I do wear collar shirts and leave the top button open, but I make sure that I do the bend forward test when I wear them. No open-toed shoes is probably because we have to respect the school dress code. If the girls can't wear sandals or flip flops, we can't either. I don't have many pair of dress shoes that ARE open-toe so it works out for me.