I sometimes go without wearing any fragrance, for various reasons.
If I've been sampling too much, especially if I've been working on making perfume, I can reach a point where everything... well... I wouldn't say everything starts to smell the same. I guess it's more a case where all of the nuances seem to disappear. When that happens, I stop wearing fragrances for a day or two. Or more.
If I'm sick, especially with anything that affects my nose, I stop wearing fragrances.
If I start noticing I have to wear more fragrance in order to smell it, I stop wearing fragrances - usually for a few days. I do the same thing with coffee, alcohol, sugar... TV... all sorts of things.
I enjoy wearing fragrances very much, but it isn't something I need. I think there's wisdom in knowing the difference.