Maybe I Should Wash My Coffee Mug

I use the same coffee mug everyday, and I just realized that I have not washed it since I moved two months ago. I only ever use it for coffee, and since coffee is hot and acidic, simply pouring coffee into the mug is like cleaning it.

That's what I thought until I poked what looked like the bottom of my mug with a pencil. It was one of those trick bottoms that moves to reveal the real bottom. My biggest problem is that this means my mug is getting smaller and smaller everyday, which means that I am getting less and less coffee everyday. And that just wont do. Tomorrow I will wash my coffee mug.