Set a budget in advance and stick to it. Are you paying? Are your parents? What can you afford? Narrow it down to a few stores and a few dress options that you can afford. Prom dresses can get very pricey if you don’t do your research ahead of time.
Pick out the right style for your body type. You also have to be aware of what style you are searching for so you wear the correct bra and underwear. Some dresses require halter or strapless bras while others require thongs or full coverage underwear. Everyone has tried on a strapless shirt with a regular bra, buy it, and realize it’s not quite right with a strapless. This happens with dresses all the time as well. So know, before you go!
Keeping it school appropriate. It is important to keep your school’s dress code policy in mind. Just because you’re not wearing the dress to class doesn’t mean that all rules go out the window. Find out what the policy is at your school – while some high schools might allow a high slit on the thigh, others may have more conservative guidelines. Also make sure to take your parents’ thoughts and concerns into consideration, and ask them what they would be comfortable or uncomfortable with you wearing.