Finally, you have to consider the cost of the prom dress. Before you go shopping, you need to have a budget. If possible, write down the amount you intend to spend on the dress and stick to it. You should also budget for other things you will need such as an evening or a clutch bag, shoes and jewellery. This will help avoid a scenario where you spend all your money on the dress and end up with nothing to buy accessories. You can do some window shopping first and compare the costs. Once you have found a dress that you like and is within your budget limits, you can go ahead and get it.