Nursing clothes

Kalah
What stores, styles, and even specific items, have been your fav for nursing tops? Im having a hard time finding ones I like.
Also what do people wear for pumping at work? I'm thinking a nursing tank top with a normal shirt over. While I have a dedicated (& nice) room to do it in, my company us big and I know of 4 others who are going to be using the room too. We are all OK with using it at the same time but I'd rather cover my new stretchmarks & excess rolls - lol