Sitting on a 2007 bottle of Bois Du Portugal by Creed stored correctly (I assume, Oslo_fjord
) and it smells DIVINE still after all these years.
As said, not too warm, not too much moisture in the air and no direct sunlight and you'll be good for huge amounts of time.
Now, regarding light from say a standard lamp. Is that regarded as unfortunate? I have my cabinet only .5 meters away from a lamp, and it's on now and then, probably giving some "indirect" light through the glass wall on my collection. Should I be superduper-worried? I'm not, to be honest ... but these are my babies seeing as I don't have any real babies ... so warn me if I should freak out every time the light is on