Mugs at Work

How often do you wash your mug at work?

And when you wash it, do you use soap?

I've been making observations, and I am disturbed. Most people that I know just throw away their leftover coffee or tea from the previous day, maybe rinse the mug with water and refills. So if their mugs are white or light colored, you can see the stains that have settled in. Gross.

I on the other hand, wash my mug everyday. I try to do it before I leave work. If I leave in a hurry, I wash it the next morning. My mug is white and pristine. No rings of stains here. Not only do I wash it everyday, I wash it with dish soap. And I don't like to use the communal sponge so I use a tiny piece of paper towel instead. (I know, I'm killing trees, but it's for a good cause. My mental sanity.)

So am I like OCD crazy? Or are people I am surrounded by dirty people?

PS - Do you wash your underwear before you wear it for the first time? I thought everyone did, but apparently some people do not...