Hands down, this is the best $15 that I've spent in the kitchen, and no, this is not a paid advertisement.
Years ago, I used to get similar boxes at Sam's, but they stopped selling them and since then I've been wrestling with plastic wrap. Uneven tears, sharp box lids, rolls falling out of the stinking boxes, and the unnecessary frustration that comes with it all. No more! This little slicer makes it so easy! Oh, and hold on to your seats, they make them for parchment paper and foil too. Treat yo self!
(It's made by Chicwrap and I got mine from Amazon.)