Last one to post in this thread wins!

Hey Fred... you were talking about your mugs having the coffee or tea stains on them. We use Cascade Platinum cubes and it does a real decent job of cleaning them and the dishwasher too. Tried all brands and found these to be the best.
That tannins can be really hard to get rid of. Sometimes my wife would put a small amount of bleach in each mug and let sit then thoroughly clean them which always worked.