Some promotions on Amazon.com offer a discount when you purchase multiple
qualifying items--for example, buy 4 books for the price of 3.

For physical goods, to take advantage of multi-item promotions, follow these
steps:

1. Add all products described in the promotion to your Shopping Cart in one of
   two ways:
   • Via the "Add both to Cart" button for the seller indicated in the offer
     message. OR
   • Via the "Add to Shopping Cart" button on each respective product information
     page for the seller indicated in the offer message.
2. The amount of the promotion discount will be reflected on the final order
   checkout page and will be allocated proportionally to all promotion items in the
   Shopping Cart.

Terms and Conditions

• The promotion is valid for a limited time only. Amazon reserves the right to
  cancel it at any time.
• If you do not purchase the qualifying items added to your Shopping Cart when
  the promotion is in effect, the discount will not apply.
• The promotion applies only to qualifying items displaying the offer message
  on their product information pages.
• The promotion applies only to products sold by the seller indicated in the
  offer message. It does not apply to the same products sold by other sellers. For
  example, if the promotion applies to cookware offered by Amazon.com, the same
  cookware offered by other sellers on the Amazon.com website (e.g. Macy's,
  Target, etc.) do not qualify.
• Unless the promotion indicates otherwise, it applies to the lowest-priced
  qualifying item and may not be combined with other offers.
• All qualifying items must be purchased in one order and shipped to a single
  address.
• If you return any of the promotion items, we will subtract your discount
  from your return credit.
• Shipping and handling charges apply to all products, including promoted
  items.
• This promotion may not be combined with other offers, including promotional
  certificates.
• Does not apply to orders placed with 1-Click.
• Offer good while supplies last.
• Void where prohibited.
• If you remove any of the promotion items from your Shopping Cart or violate
  any of the Terms and Conditions, the promotion will be invalid, and the discount
  will not apply.

Some promotions offered on
Amazon.com allow you to get a free item when you purchase a certain number of
similar items. Learn more about these promotions.

During the time of writing this post, there is more than 100,000 eligible items to choose from.  In the Kitchen Utensils & Gadgets catgory, there is over 10 thousand kitchen gadgets to buy and save!  To learn more and do some shopping, 4 for 3 Promotion: 4 for 3 Promotion