[Purchased with My Own Money] Oral Care - Waterpik

I always feel like something is missing even after brushing my teeth
I used to gargle, but I tried using a Waterpik and wow, it feels so refreshing. It's totally invigorating.
The downside is that, I don't know if it's just this product, but it's incredibly loud. The buzzing sound is very loud.
I like the Waterpik because it leaves a refreshing feeling after brushing and also provides oral care.