How can I prevent my feet from smelling when I must wear nylon socks?

I must wear nylon stockings for work and my feet smell so bad when I get home. I've tried different types of shoes, odor-eater insoles, sprays, powder and nothing seems to help. Of course showering removes the odor, but there must be a way to avoid it from the start. I would love a suggestion that would help me be able to continue wearing the nylons, but not have to shower and change the minute I get home. p.s. even my crocks smell... Please help.