Free maybeline eye shadow at cvs

I got some on sat. Here's how it works you buy 1 at 5 something and on your receipt (use your cvs card) is 5 something in cvs cash go buy another 1. And then you get another receipt with 5 something on it. You can do this 3 times. So you end up with 4 eye shadows for the price of 1 (5 something). Not Bad! Its the eye shadow trios and there are signs by them telling you, its pretty easy!