Originally Posted by fit&frag'd
Depends on the strength of the frag and the type of atomizer.
And also a host of other factors like how I feel, what the weather is like, where I am going to be that day or evening, who I will be with etc. etc. etc. It is also actually possible to wear one spritz of Perfume X one day and several spritzes another day, you know - it's called personal choice and I have lived to tell the tale.
Laying out some sort of mandate for a 'fixed norm' of only wearing 2, or 3, or 4 spritzes or whatever is one of the most absurd things I have come across here. It just presumes so much with so little understanding of the whole gamut of fragrances on offer, the effects of the compositional elements and their relative concentrations, cultural context and so many other variables that it is at best naiive and at worst dangerously ignorant.
Of course, if you can't judge for yourself how much or how little to wear based on your knowledge and appreciation of the perfume in hand and the social and physical environment you find yourself in then the problem probably runs deeper than this thread will ever be able to address.