"Wedding dress shopping can become a social event when you go with a group of friends. This is fun, but can make it more difficult to make a good decision," advises Martina. You need to think seriously about fit and cost, and it can be difficult to keep a cool head with so much excitement (and Champagne). The whole experience should be fun, but if you're even a little bit unsure, don't say "yes" immediately. A budget-busting dress could end up costing you more than you'd anticipated once you add in alteration costs. Similarly, don't bring all of your bridesmaids to your fitting appointments. You know what they say about too many cooks.