I recommend:
Chico's. Go into any Chico's store and an associate will magnetically attach herself to you and help you with whatever you need. If there isn't a Chico's near you, go online. Buy tank tops or short-sleeved shirts, then buy a jacket.
Lane Bryant. They sell plus sizes, so this may or may not help you. I have an interview suit from LB from when I was heavier... I will be wearing said suit tomorrow as I must attend a funeral
