You already know about fast fashion, but what about "fast beauty"? It's where drugstore brands follow luxury makeup trends, but price them much cheaper. A prime example is, uh, primer: After Napoleon Perdis unleashed his magical Auto Pilot formula on American girls in 2005, Urban Decay, Smashbox, and Bare Escentuals followed.
Now CoverGirl has their own eye primer, but with a twist: this combines the make-it-stick power of normal primers with a scoop of colorful liquid eye shadow. It's a time saving trick that's both innovative and easy, and great for beach days or summer concert outings when your makeup should be (but probably isn't) the last thing on your mind.
In true "fast beauty" style, the new makeup is $7.50 per tube - a very good deal when you consider it's two products in one.