Recently I went to the supermarket in Taipei to buy some eggs and found they come in packages of 10 instead of 12. The built-in egg container in our refrigerator at home is also for 10. As much as I like the metric system, I still prefer to buy eggs in a dozen, as 12 is divisible by 2, 3, 4, and 6. I suppose this is why some countries with the metric system, like England and France, still sell eggs in packages of 6 or 12.
Another interesting thing to note about buying eggs in Taipei is they are not refrigerated in the supermarkets, only air conditioned.