I'll join in.
I just got a 36A Maidenform T-shirt bra that fits perfectly. Wore it to work today. My usual bralets are 36.
Panties are a 5. Lower rise pants from my vendor of choice (Lands' End) are 6s, regular waist pants from them are 8s. Elastic waist skirts are smalls. I've had luck recently buying LE skirts in my pants size there.
Camisoles, casual tops, jackets and nighties are Medium. Nicer blouses are 12s.
Shoes/sandals are tough. Usually about a 10 or 10.5. Wide if they have them. Shoes are my least successful purchases.
Edit May 14th.
Just received two more of the Maidenform bras today. Now I don't have to worry about wearing my first one out.
CD in SF