I think I'll start my shopping trip at one of my favorite websites, Michael Stars.
Best known for its amazing collection of tees, the company introduced a collection of amazing dresses last year. I have yet to find anything in their collection that isn't completely comfortable and flattering.
Here are my favorites in their Summer Collection:
Dip Dye Empire Waist Shine Tube Dress
Price: $78.00
Vee Neck w/Shirring Supima Camisole
Price: $52.00