I have been experimenting with bath bombs and other related products and have found a great product from Japan: Bub bath tablets
They are way cheaper than bombs and are just as fragrant. There is a variety pack that has sandalwood, lavender, ginger/bergamot, and eucalyptus tabs.
I bought a multipack of nice oil blends I use to make a sugar scrub.
Does incense count?
If not, how about thieves oil in a defuser? That stuff is amazing. Lots of studies on it or it's component oils showing strong anti bacterial/viral/fungal properties.
Yes I reckon it counts. I'd not heard of thieves oil, what's it used for?
Lots of things, this page has a lot of info and I also use it for cleaning:
https://www.healthline.com/health/thieves-oil
I think it should be the essential oil that everyone has as it has so many practical uses for sterilization.