Most memberships offer a points or rewards system, and RoseGal is no different. In fact, they have an entire "points mall" set up for you to use your earnings. Simply accumulate points ($1=12 points) and head on over to the bottom of any page. Near the bottom right, you'll see a link for the points mall. There you can find such items like dresses, plushies, athletic wear, mermaid tail blankets, and more.
Unfortunately, you can't use A RoseGal coupon code, but you can always find what you need on this page to help you save money while accumulating points.