Why your closet is full of scented soap.

[snarp]

Modern humans with disposable income hoard bath products out pre-civilized hindbrain hygiene instincts, mating instincts, and the near-universal need for reassurance of our own wealth and security, expressed by surrounding ourselves with pretty things we don't need. A stash of "Bath and Body Works" products under the sink is one of the purest and most elemental expressions of human emotional need, like cooing at babies and fighting a dude over a parking space.