A couple should prefer different fragrances

[Willie]

"If your partner has a strange knack of being able to pick out all the right perfumes, this may not be a good sign at all. And that, of course, means that the best you can hope for this Christmas is that he has bought you a perfume that you absolutely hate."

http://www.economist.com/displaystory.c ... d=12811377
Do you want to know the reason? check out the article above.