This is a question I am asking myself quite often, because I am stressed by owning many frags. And of course it is quite impossible to answer... I have two answers for it, an these two I can´t make a choise between...
My first pair of perfumes, as I could have as my only two:
Chanel No 19 and Coco Chanel. They are my two favourite sociable frags.
My secound pair of perfumes, also possible to have as my only two:
Mitsouko and L´Heure Bleu. They are my two favourite emotional frags.