When you are heading out to try on gowns and find the perfect dress for your big day, you're probably excited. Before you head to your first boutique, though, you need to be prepared. The following are things to avoid so you can have the best day of shopping and walk away with a dress you love. Failing to set a budget You will see a lot of beautiful dresses (and a few less beautiful ones, too), and it can be tempting to simply pick the one you love the most regardless of the price tag.