Napoleon was rushing back from a victory in battle and maybe 10 days from Paris wrote Josephine telling her to expect him in about 10 days. He ended his note with the order "don't wash".
Now in this age of clean, I have always thought that such a command may be a bit kinky. BUT I was wrong. Apparently smell is the most important hook between men and women. This is not something that you can bottle. Our sense of smell is also so weak that the real thing may be masked by deodorants and perfume.
Top courtesans in Paris used to dab their own juices behind their ears - maybe they and Napoleon have something to teach us in the anti bacterial age