I have read that Kouros should be sprayed on clothing so that the top notes linger longer. In general, you do not want fragrance on clothing since it was designed in the lab to work best when interacting with your skin.
I hear it said that with clothing has the edge. Often I've sprayed sports coats and found basenotes from the fragrance I sprayed it with a month ago. Our body heat radiates scents as well as our own of course and are dissapated more quickly
There are some here that get dressed and spritz a mist in the air above and walk through it. I suppose as many times as needed.
if you find some fragrances really disagree with your skin, you can spritz them on the inside of the sleeves or your sweater or shirt or whatver it is you are wearing, and around the neck are of the sweater/shirt as well, this way the fragrance will act more like it does on paper
I find that spraying my clothes can preserve the topnotes. I really enjoy the topnotes of Ungaro III and so I will spray my chest and then my shirt to keep the topnotes alive. You must be careful as some fragrances can stain your clothes. I remember staining a white shirt with Ambre Sultan when I sprayed it by mistake.