 Don't go for anything too rich, too sickly. You know, something that smells like your great-grandmum's, you know, sort of boudoir. Well, I'll certainly be avoiding eau de boudoir. Next time you schedule a meeting or put your home on the market, make sure to check the smell in the air. It could be the deal-breaker. I'm the BBC's Elizabeth Hodgson for Marketplace.