Oh I have a list.
Hair - I have a hard and fast rule: If you're in my kitchen or pool, your hair is tied back.
Metal objects like screws or earrings, I just don't like seeing them sitting around and it feels like my throat closes.
Nails - like finger and toe nails, ever since our oldest was born, he's in charge of all toe/fingernail trims/issues.
I also can't pull my kids' teeth.
I have no idea why these things bother me, but they really do.