Second - go out and buy her a bottle of Organza Indecence by Givenchy (I've never worn a perfume that so many men loved!). Wrap it up nicely and give it to her, saying "I've never really been fond of your current perfume, why don't you try this one instead?" - or maybe just "I smelled this perfume and thought it would be perfect on you".
I'm betting that other perfume ends up in the trash in no time!
