I've long heard friends rave about the smooth finish a primer gives to your made-up face. But this one is new to me: a spray to put on after you've applied everything, called Invisible Finish. Evidently it's like hairspray for your face: your makeup doesn't budge, even if you sleep in it, you naughty girl. (No more raccoon eyes to give you away on the Walk of Shame!)
The idea of sleeping in makeup feels a bit dirty to me, but beauty loopholes are made for products like this. After all, sometimes you apply your makeup and magically have a face that looks so good you want to immortalize it for at least one more day. And $17 bucks (find it here on Amazon.com) is less than the price of professional application... oh, how easy it is to rationalize!