"Who's Your Daddy?" Home DNA paternity tests:

Identigene is selling at-home DNA testing kits for paternity testing at drugstores across the country. The $30 kit includes swabs for the child, mother, and "alleged father," consent forms, and a mailer to be sent back to the company. You'll also want to include a check—the lab fees are an additional $120. Results are available in 3-5 business days once the samples have been received.

Only $150 separates you from the truth about your child's paternity, although you'll have to pay an additional $250 if you need legal paperwork from Indentigene to be used in divorce, custody, child support, inheritance, or other legal cases.