Print out this checklist and follow it to ensure that you are ready for the Prom. Four Months before Prom: ___Set Budget - Find out how much money your parents are willing to contribute to your prom. Start to earn and save money to cover the difference. ___Magazines - Buy a few Prom magazines and look through them to find retailers of dresses and accessories. ___Dress - Start to get ideas of what type of dress you would like to buy. Cut out pictures from magazines and start a scrap book. ___.