Refashionista: Adding a zipper to a t-shirt dress

Ever since I refashioned the zipper tee, I've been wanting to do another zipper refashion. But this time I wanted the zipper to be functional as well. And when I found this long t-shirt dress on a thrifting spree a couple of weeks ago, I knew I'd found the perfect match for this project.
It turned out just as I had imagined. And it was all done during my "lunch-break" yesterday while drinking a cup of coffee. It really was a super quick project.

Source: http://www.pearlsandscissors.com/2013/03/refashionista-adding-zipper-to-t-shirt.html