Smelling perfume testers, meanwhile, doesn't give you enough time to let each scent set in because you usually attempt to smell as many as you can in a period of time.
In the end you get scent fatigue, a condition wherein you can't distinguish the different scents from each other anymore.
Layering: Using various different scented products to build up layers of scent e.g.
shower gel, then deodorant, then body lotion then perfume.
Body Notes: Also known as the heart or middle notes of the fragrance: this is the perfume's dominant scent.