Before you click “add to cart,” make sure you check the seller’s size chart to ensure you don’t follow up your glorious unboxing with a case of buyer’s remorse. In many cases, the same retailer can have sizing differences between styles, so it’s important to check the size chart for each style you’re considering and make sure your measurements are aligned. Next, check the description of how it is meant to fit. Oversize, bodycon, fitted? You may want to size up or down depending on how you want the dress to drape on your body. Also, peep the reviews — many include pictures from real-life buyers that will tell you more than model shots.