Getting floss stuck in your teeth. I do not recommend this product:
It sounds like a great idea. You get three kinds of floss in one: stiff floss, spongy floss, and regular floss. However, it’s some of the stickiest floss I’ve ever used. It’s very hard to get it between your teeth. I think Linda and I both broke the floss while trying to use it last night. The added fun for me was that I did it twice, and that both times it was while trying to get the floss back out, leaving bits of floss between my teeth. Thankfully we had some backup floss-classic.