“I've noticed an increasingly number of people complain about how a scent doesn't last as long as it used too. This is due to a phenomenon called Olfactory Fatigue. The longer you smell something, the more your brain tries to ignore it. Just like how someone's house can smell of pet odor (urine, etc) but they don't smell it, or especially body odor. Since cologne is a strong smell, your sense of smell will learn to ignore it quickly. The cologne isn't weaker, you're just not as sensitive to it. If you ask someone who doesn't see you very often (girlfriends and wives can also experience olfactory fatigue), like a coworker to smell you, I guarantee they will smell your cologne. This is also why some people smell like they've bathed in cologne - they can't smell it well so spray on loads to compensate. Cologne companies won't inform you of this because they want you to burn through your supply so you have to buy more from them.If you want to neutralize or slow olfactory fatigue, it's best to rotate through different colognes daily. Try not to use similar colognes (Aventus on Monday, Club de Nuit Intense on Tuesday, etc). I personally enjoy Club de Nuit Intense, Creed's Viking, Creed's Virgin Island water, Tom Ford's Tobacco Vanille, and Amouage's Interlude Man. I rotate through all of these during a work week. Some are ridiculously potent so only 1 squirt is more than enough (Tom Ford's Tobacco Vanille and Amouage's Interlude Man are ridiculously potent - I wish I could do just a half squirt).”