ST. LOUIS - Prom season is a big deal for young ladies, but it can also be expensive.

Thanks to Natalie DeWitt, daughter of Cardinal's president Bill DeWitt III, girls can get their prom dresses for free.

With entrepreneurship in her blood, DeWitt started the site promdresssharestl.com and has collected over 400 gently used prom dresses.

If you have some dresses in your closet you'd like to donate, you can visit the website to find out how.