Hundreds of millions of dice are sold each year and none are absolutely fair. Some are fairer than others. How do you test the fairness of your dice? Which methods work and which are useless? Are metal, plastic, or mineral dice better? Are expensive dice better than bargain dice? How many times do you have to roll dice to determine whether they are fair or not? The answers to these questions and many more are based on simulations of billions of dice rolls and more than 100,000 physical dice rolls. Dice misinformation abounds on the Internet. We will lay some of these to rest using sound probability theory and practical tests.