Don't skimp on size. Be sure to get a Prom dress that's not too tight for you. Fit is really important!

A simple silhouette will streamline your shape. A-line, empire, bias, and column styles can be good because they skim the outline of your figure without a lot of extra fabric or fussy details.

A full ball gown skirt can also work well by accentuating a small waist, hiding heavy hips, or generally balancing out your proportions.

An empire waist gown can be flattering whether you're large-busted or small-busted. It emphasizes your chest and throat area and de-emphasizes your waist and hips.

If you prefer a shorter cocktail dress , choose an asymmetrical hemline style that will give you a longer, slimmer look.

Always choose yourgown color carefully. Darker colors are more slimming than pastels. If you have a favorite color, choose a shade of it that flatters you.

If you need to wear a bra with your dress, look for a dress with wide straps. Another way to go is a strapless long-line or a halter bra, which can be found in department and bra specialty stores or online at Plus Size Bras (order early for better selection) also try Bare Necessities

If you're concerned about heavy arms, here are some fixes: Look for a dress with short sleeves or semi-attached, "off the shoulder" sleeve-lets that extend the neckline horizontally. Wear a filmy wrap gathered around your shoulders. Wear a pair of above-the-elbow black gloves