I’ve organized my 2 ml samples and discovery sets into a fragrance library. For me, these samples aren’t something to spray once and forget about. They allow me to study fragrances, improve my nose, prepare for reviews and understand what another brother is describing even when I don’t own the bottle. A 2 ml sample generally provides around 20-30 sprays, although smaller sample atomizers may produce closer to 30-40. I usually plan on approximately 25 usable sprays, since an atomizer may need one or two sprays to get started. Here is how I use them: First impression: 1 spray on cotton I begin with one spray on an organic, hypoallergenic cotton round. This lets me follow the opening, heart and drydown without my skin chemistry affecting the fragrance. I return to it after 15 minutes, an hour and several hours to see how it develops. Cotton is also useful for building scent memory, but it cannot tell me everything. It won’t accurately show how the fragrance projects, performs or reacts with my skin. First skin test: 2 sprays If the fragrance interests me, I use one spray on each forearm. I don’t rub it in. I check it throughout the day to see how it develops and whether anything becomes unpleasant, disappears quickly or improves in the drydown. Controlled wearing: 3 or 4 sprays Next, I give it a realistic wearing: - One spray on each side of the neck - One spray on the chest - An optional fourth spray on the back of the neck Now I can evaluate projection, sillage, longevity and the overall scent bubble. Final wearing: my normal spray routine Before considering a bottle, I wear the fragrance the way I would actually wear it. I test it in the appropriate weather, indoors and outdoors whenever possible. That is especially important here in Arizona, where extreme heat and dry air can completely change how a fragrance performs. A complete evaluation may use approximately 10-15 sprays: - 1 spray on cotton - 2 sprays for the first skin test - 3-4 sprays for a controlled wearing - 4-6 sprays for a full wearing