I always keep two on hand, so that I am never caught with dirty hair and no dry shampoo in the morning. (ladyinviolet.com)
This hairstyle is perfect for bad / dirty hair days, or even if you just want to switch up your usual bun style for something equally as easy and cute. (louiseroe.com)
It's perfect for dirty hair, and I usually use this hairstyle on vacation, or if I am in a pinch for time. (steffysprosandcons.com)