Our shopping cart is set up so that you can choose the shipping option that works best for you. Enter your zip code and click Update Totals for your personalized shipping estimate based on Priority Mail shipping. If you add diapers or heavy items to your cart, the rate may look high. However, as you continue through the checkout process, you will have a choice of Priority Mail or UPS shipping. You will be able to see all available rates, including rush rates, and you can choose the option that works best for you. For most packages over 2 or 3 lbs the UPS Ground rates will offer the best value.