One of my biggest tips to a full figure woman is to not limit yourself exclusively to plus size brands/stores. Take a day to shop around straight size stores that carry sizes XL/XXL or offer generous sizing. Typically higher end brands cut larger and depending on fabric of the garment straight sizes may drape our curves perfectly. This tip will never replace our need to shop plus size but it may open up a few more options.
This recently purchased leopard dress from Joe Fresh is a size XL yet fits my 3X (18-20) frame perfectly.