i need to lose 20 pounds fast, help?

i have stubborn tummy, butt, and thigh fat that wont go away and i need to lose at least 20 pounds in order to fit into my old clothes, (cant afford to buy new clothes)
any exercize ideas that will help me?
i need a SUREFIRE way to loose this weight
Losing weight is a simple equation: if you burn more calories than you eat, the weight will come off. Start off by estimating how many calories you burn each day using the calorie calculator http://straighthealth.com/pages/tools/caloriecalclb.html This will give you an idea of how many calories to eat. Healthy weight loss is 1-2 pounds per week. To lose 1 pound per week you need to create a calorie deficit (burn more than you eat) of 500 calories per day. To lose 2 pounds a week, you have to double the deficit to 1000 calories per day. You can achieve this by eating less, exercising more or a combination of both.
Guide to Dieting - http://straighthealth.com/pages/guides/dieting.html
The 9 Week Straight Diet - http://straightdiet.com
Health, Exercise and Diets - http://straighthealth.com