Bone china only, for me too. I really don't like pottery mugs, and mugs with straight sides ("what I like to call" builders mugs!) are an absolute no-no. That's my foible. One of many! DD bought me a Wedgewood cup and saucer to keep at her house as their mugs all tend to be on the hefty, rustic side. When I visit DS my d-i-l will root out one of their Denby cups and saucers for me - she says it's the only time they get an outing! I also have a thing about cutlery not matching. I think I need help! DH doesn't have foibles, except that he gets a bit touchy about which order his pillows are put on the bed! He 'tuts' audibly if he has to change them round!