[header] How to go from goody goody nerd to sexy bad girl in one summer [title] Start saving money. [step] This isn't going to cost a ton, but you are going to need some money. [title] Start working on getting fit. 
[step] Sign up for a class that will get you in shape, boost confidence, and be lots of fun, like kick-boxing or hip-hop dancing. You'll be healthy and probably more athletic.