There are many times when you can't brush your teeth when you're out, right? It's good to carry mouthwash with you for those moments. At first, I used Gargrin, but then my friend tried the blue Listerine—the super spicy one?—and I was like, "What is this? It's too spicy!" and stopped using it. After that, Gargrin didn't feel clean enough!!!! So I bought the blue Listerine and diluted it with water, but then I saw they had a milder line and switched over. Haha. It actually feels a bit more refreshing than brushing... but I heard it's not good to use it too often, so I'm trying to hold back.