Just as it sounds, a contour diaper is a cloth diaper shaped to fit snugly around a baby's chubby little legs. When you lay one of these down flat, it looks like an hourglass, with an absorbent layer in the skinny center section to capture wetness. Using snaps, Velcro or pins, fasten the diaper at your baby's waist; add a diaper cover, and your tot is ready to get down to business. Contour diapers cost USD6 to USD15 apiece; the price varies with the fabric and method of closure. How many you'll need to buy depends on how often you plan to do laundry. Keeping in mind that your newborn will probably go through 10 to 12 a day - less as your baby gets older - you'll want to buy enough to keep yourself stocked until you can get to the washing machine.